1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2015 by Delphix. All rights reserved. 25 * Copyright 2012 Milan Jurik. All rights reserved. 26 * Copyright (c) 2012, Joyent, Inc. All rights reserved. 27 * Copyright (c) 2013 Steven Hartland. All rights reserved. 28 * Copyright (c) 2014 Integros [integros.com] 29 * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>. 30 * Copyright 2016 Nexenta Systems, Inc. 31 */ 32 33 #include <assert.h> 34 #include <ctype.h> 35 #include <errno.h> 36 #include <libgen.h> 37 #include <libintl.h> 38 #include <libuutil.h> 39 #include <libnvpair.h> 40 #include <locale.h> 41 #include <stddef.h> 42 #include <stdio.h> 43 #include <stdlib.h> 44 #include <strings.h> 45 #include <unistd.h> 46 #include <fcntl.h> 47 #include <zone.h> 48 #include <grp.h> 49 #include <pwd.h> 50 #include <signal.h> 51 #include <sys/list.h> 52 #include <sys/mkdev.h> 53 #include <sys/mntent.h> 54 #include <sys/mnttab.h> 55 #include <sys/mount.h> 56 #include <sys/stat.h> 57 #include <sys/fs/zfs.h> 58 #include <sys/types.h> 59 #include <time.h> 60 61 #include <libzfs.h> 62 #include <libzfs_core.h> 63 #include <zfs_prop.h> 64 #include <zfs_deleg.h> 65 #include <libuutil.h> 66 #include <aclutils.h> 67 #include <directory.h> 68 #include <idmap.h> 69 #include <limits.h> 70 71 #include "zfs_iter.h" 72 #include "zfs_util.h" 73 #include "zfs_comutil.h" 74 75 #define XVERSION "1.1" 76 #define STG_POOL_FILE "/etc/stg/self.pool" 77 #define POOL_NAME_LEN 5 78 79 static int dataset_type = 0; /* decides which datasets we should print */ 80 81 libzfs_handle_t *g_zfs; 82 83 static FILE *mnttab_file; 84 static char history_str[HIS_MAX_RECORD_LEN]; 85 static boolean_t log_history = B_TRUE; 86 87 static int zfs_do_clone(int argc, char **argv); 88 static int zfs_do_create(int argc, char **argv); 89 static int zfs_do_destroy(int argc, char **argv); 90 static int zfs_do_get(int argc, char **argv); 91 static int zfs_do_inherit(int argc, char **argv); 92 static int zfs_do_list(int argc, char **argv); 93 static int zfs_do_mount(int argc, char **argv); 94 static int zfs_do_rename(int argc, char **argv); 95 static int zfs_do_rollback(int argc, char **argv); 96 static int zfs_do_set(int argc, char **argv); 97 static int zfs_do_upgrade(int argc, char **argv); 98 static int zfs_do_snapshot(int argc, char **argv); 99 static int zfs_do_unmount(int argc, char **argv); 100 static int zfs_do_share(int argc, char **argv); 101 static int zfs_do_unshare(int argc, char **argv); 102 static int zfs_do_send(int argc, char **argv); 103 static int zfs_do_receive(int argc, char **argv); 104 static int zfs_do_promote(int argc, char **argv); 105 static int zfs_do_userspace(int argc, char **argv); 106 static int zfs_do_allow(int argc, char **argv); 107 static int zfs_do_unallow(int argc, char **argv); 108 static int zfs_do_hold(int argc, char **argv); 109 static int zfs_do_holds(int argc, char **argv); 110 static int zfs_do_release(int argc, char **argv); 111 static int zfs_do_diff(int argc, char **argv); 112 static int zfs_do_bookmark(int argc, char **argv); 113 static int zfs_do_xlist(int argc, char **argv); 114 115 /* 116 * Enable a reasonable set of defaults for libumem debugging on DEBUG builds. 117 */ 118 119 #ifdef DEBUG 120 const char * 121 _umem_debug_init(void) 122 { 123 return ("default,verbose"); /* $UMEM_DEBUG setting */ 124 } 125 126 const char * 127 _umem_logging_init(void) 128 { 129 return ("fail,contents"); /* $UMEM_LOGGING setting */ 130 } 131 #endif 132 133 typedef enum { 134 HELP_CLONE, 135 HELP_CREATE, 136 HELP_DESTROY, 137 HELP_GET, 138 HELP_INHERIT, 139 HELP_UPGRADE, 140 HELP_LIST, 141 HELP_MOUNT, 142 HELP_PROMOTE, 143 HELP_RECEIVE, 144 HELP_RENAME, 145 HELP_ROLLBACK, 146 HELP_SEND, 147 HELP_SET, 148 HELP_SHARE, 149 HELP_SNAPSHOT, 150 HELP_UNMOUNT, 151 HELP_UNSHARE, 152 HELP_ALLOW, 153 HELP_UNALLOW, 154 HELP_USERSPACE, 155 HELP_GROUPSPACE, 156 HELP_HOLD, 157 HELP_HOLDS, 158 HELP_RELEASE, 159 HELP_DIFF, 160 HELP_BOOKMARK, 161 HELP_XLIST, 162 } zfs_help_t; 163 164 typedef struct zfs_command { 165 const char *name; 166 int (*func)(int argc, char **argv); 167 zfs_help_t usage; 168 } zfs_command_t; 169 170 /* 171 * Master command table. Each ZFS command has a name, associated function, and 172 * usage message. The usage messages need to be internationalized, so we have 173 * to have a function to return the usage message based on a command index. 174 * 175 * These commands are organized according to how they are displayed in the usage 176 * message. An empty command (one with a NULL name) indicates an empty line in 177 * the generic usage message. 178 */ 179 static zfs_command_t command_table[] = { 180 { "create", zfs_do_create, HELP_CREATE }, 181 { "destroy", zfs_do_destroy, HELP_DESTROY }, 182 { NULL }, 183 { "snapshot", zfs_do_snapshot, HELP_SNAPSHOT }, 184 { "rollback", zfs_do_rollback, HELP_ROLLBACK }, 185 { "clone", zfs_do_clone, HELP_CLONE }, 186 { "promote", zfs_do_promote, HELP_PROMOTE }, 187 { "rename", zfs_do_rename, HELP_RENAME }, 188 { "bookmark", zfs_do_bookmark, HELP_BOOKMARK }, 189 { NULL }, 190 { "list", zfs_do_list, HELP_LIST }, 191 { NULL }, 192 { "set", zfs_do_set, HELP_SET }, 193 { "get", zfs_do_get, HELP_GET }, 194 { "inherit", zfs_do_inherit, HELP_INHERIT }, 195 { "upgrade", zfs_do_upgrade, HELP_UPGRADE }, 196 { "userspace", zfs_do_userspace, HELP_USERSPACE }, 197 { "groupspace", zfs_do_userspace, HELP_GROUPSPACE }, 198 { NULL }, 199 { "mount", zfs_do_mount, HELP_MOUNT }, 200 { "unmount", zfs_do_unmount, HELP_UNMOUNT }, 201 { "share", zfs_do_share, HELP_SHARE }, 202 { "unshare", zfs_do_unshare, HELP_UNSHARE }, 203 { NULL }, 204 { "send", zfs_do_send, HELP_SEND }, 205 { "receive", zfs_do_receive, HELP_RECEIVE }, 206 { NULL }, 207 { "allow", zfs_do_allow, HELP_ALLOW }, 208 { NULL }, 209 { "unallow", zfs_do_unallow, HELP_UNALLOW }, 210 { NULL }, 211 { "hold", zfs_do_hold, HELP_HOLD }, 212 { "holds", zfs_do_holds, HELP_HOLDS }, 213 { "release", zfs_do_release, HELP_RELEASE }, 214 { "diff", zfs_do_diff, HELP_DIFF }, 215 { "xlist", zfs_do_xlist, HELP_XLIST }, 216 }; 217 218 #define NCOMMAND (sizeof (command_table) / sizeof (command_table[0])) 219 220 zfs_command_t *current_command; 221 222 static const char * 223 get_usage(zfs_help_t idx) 224 { 225 switch (idx) { 226 case HELP_CLONE: 227 return (gettext("\tclone [-p] [-o property=value] ... " 228 "<snapshot> <filesystem|volume>\n")); 229 case HELP_CREATE: 230 return (gettext("\tcreate [-p] [-o property=value] ... " 231 "<filesystem>\n" 232 "\tcreate [-ps] [-b blocksize] [-o property=value] ... " 233 "-V <size> <volume>\n")); 234 case HELP_DESTROY: 235 return (gettext("\tdestroy [-fnpRrv] <filesystem|volume>\n" 236 "\tdestroy [-dnpRrv] " 237 "<filesystem|volume>@<snap>[%<snap>][,...]\n" 238 "\tdestroy <filesystem|volume>#<bookmark>\n")); 239 case HELP_GET: 240 return (gettext("\tget [-rHp] [-d max] " 241 "[-o \"all\" | field[,...]]\n" 242 "\t [-t type[,...]] [-s source[,...]]\n" 243 "\t <\"all\" | property[,...]> " 244 "[filesystem|volume|snapshot] ...\n")); 245 case HELP_INHERIT: 246 return (gettext("\tinherit [-rS] <property> " 247 "<filesystem|volume|snapshot> ...\n")); 248 case HELP_UPGRADE: 249 return (gettext("\tupgrade [-v]\n" 250 "\tupgrade [-r] [-V version] <-a | filesystem ...>\n")); 251 case HELP_LIST: 252 return (gettext("\tlist [-Hp] [-r|-d max] [-o property[,...]] " 253 "[-s property]...\n\t [-S property]... [-t type[,...]] " 254 "[filesystem|volume|snapshot] ...\n")); 255 case HELP_MOUNT: 256 return (gettext("\tmount\n" 257 "\tmount [-vO] [-o opts] <-a | filesystem>\n")); 258 case HELP_PROMOTE: 259 return (gettext("\tpromote <clone-filesystem>\n")); 260 case HELP_RECEIVE: 261 return (gettext("\treceive [-vnsFu] <filesystem|volume|" 262 "snapshot>\n" 263 "\treceive [-vnsFu] [-o origin=<snapshot>] [-d | -e] " 264 "<filesystem>\n" 265 "\treceive -A <filesystem|volume>\n")); 266 case HELP_RENAME: 267 return (gettext("\trename [-f] <filesystem|volume|snapshot> " 268 "<filesystem|volume|snapshot>\n" 269 "\trename [-f] -p <filesystem|volume> <filesystem|volume>\n" 270 "\trename -r <snapshot> <snapshot>\n")); 271 case HELP_ROLLBACK: 272 return (gettext("\trollback [-rRf] <snapshot>\n")); 273 case HELP_SEND: 274 return (gettext("\tsend [-DnPpRvLe] [-[iI] snapshot] " 275 "<snapshot>\n" 276 "\tsend [-Le] [-i snapshot|bookmark] " 277 "<filesystem|volume|snapshot>\n" 278 "\tsend [-nvPe] -t <receive_resume_token>\n")); 279 case HELP_SET: 280 return (gettext("\tset <property=value> ... " 281 "<filesystem|volume|snapshot> ...\n")); 282 case HELP_SHARE: 283 return (gettext("\tshare <-a | filesystem>\n")); 284 case HELP_SNAPSHOT: 285 return (gettext("\tsnapshot [-r] [-o property=value] ... " 286 "<filesystem|volume>@<snap> ...\n")); 287 case HELP_UNMOUNT: 288 return (gettext("\tunmount [-f] " 289 "<-a | filesystem|mountpoint>\n")); 290 case HELP_UNSHARE: 291 return (gettext("\tunshare " 292 "<-a | filesystem|mountpoint>\n")); 293 case HELP_ALLOW: 294 return (gettext("\tallow <filesystem|volume>\n" 295 "\tallow [-ldug] " 296 "<\"everyone\"|user|group>[,...] <perm|@setname>[,...]\n" 297 "\t <filesystem|volume>\n" 298 "\tallow [-ld] -e <perm|@setname>[,...] " 299 "<filesystem|volume>\n" 300 "\tallow -c <perm|@setname>[,...] <filesystem|volume>\n" 301 "\tallow -s @setname <perm|@setname>[,...] " 302 "<filesystem|volume>\n")); 303 case HELP_UNALLOW: 304 return (gettext("\tunallow [-rldug] " 305 "<\"everyone\"|user|group>[,...]\n" 306 "\t [<perm|@setname>[,...]] <filesystem|volume>\n" 307 "\tunallow [-rld] -e [<perm|@setname>[,...]] " 308 "<filesystem|volume>\n" 309 "\tunallow [-r] -c [<perm|@setname>[,...]] " 310 "<filesystem|volume>\n" 311 "\tunallow [-r] -s @setname [<perm|@setname>[,...]] " 312 "<filesystem|volume>\n")); 313 case HELP_USERSPACE: 314 return (gettext("\tuserspace [-Hinp] [-o field[,...]] " 315 "[-s field] ...\n" 316 "\t [-S field] ... [-t type[,...]] " 317 "<filesystem|snapshot>\n")); 318 case HELP_GROUPSPACE: 319 return (gettext("\tgroupspace [-Hinp] [-o field[,...]] " 320 "[-s field] ...\n" 321 "\t [-S field] ... [-t type[,...]] " 322 "<filesystem|snapshot>\n")); 323 case HELP_HOLD: 324 return (gettext("\thold [-r] <tag> <snapshot> ...\n")); 325 case HELP_HOLDS: 326 return (gettext("\tholds [-r] <snapshot> ...\n")); 327 case HELP_RELEASE: 328 return (gettext("\trelease [-r] <tag> <snapshot> ...\n")); 329 case HELP_DIFF: 330 return (gettext("\tdiff [-FHt] <snapshot> " 331 "[snapshot|filesystem]\n")); 332 case HELP_XLIST: 333 return (gettext("\n\txlist [-a] [-r <rid>] [-s] [-S <rid>] " 334 "[filesystem]\n")); 335 case HELP_BOOKMARK: 336 return (gettext("\tbookmark <snapshot> <bookmark>\n")); 337 } 338 339 abort(); 340 /* NOTREACHED */ 341 } 342 343 void 344 nomem(void) 345 { 346 (void) fprintf(stderr, gettext("internal error: out of memory\n")); 347 exit(1); 348 } 349 350 /* 351 * Utility function to guarantee malloc() success. 352 */ 353 354 void * 355 safe_malloc(size_t size) 356 { 357 void *data; 358 359 if ((data = calloc(1, size)) == NULL) 360 nomem(); 361 362 return (data); 363 } 364 365 static char * 366 safe_strdup(char *str) 367 { 368 char *dupstr = strdup(str); 369 370 if (dupstr == NULL) 371 nomem(); 372 373 return (dupstr); 374 } 375 376 /* 377 * Callback routine that will print out information for each of 378 * the properties. 379 */ 380 static int 381 usage_prop_cb(int prop, void *cb) 382 { 383 FILE *fp = cb; 384 385 (void) fprintf(fp, "\t%-15s ", zfs_prop_to_name(prop)); 386 387 if (zfs_prop_readonly(prop)) 388 (void) fprintf(fp, " NO "); 389 else 390 (void) fprintf(fp, "YES "); 391 392 if (zfs_prop_inheritable(prop)) 393 (void) fprintf(fp, " YES "); 394 else 395 (void) fprintf(fp, " NO "); 396 397 if (zfs_prop_values(prop) == NULL) 398 (void) fprintf(fp, "-\n"); 399 else 400 (void) fprintf(fp, "%s\n", zfs_prop_values(prop)); 401 402 return (ZPROP_CONT); 403 } 404 405 /* 406 * Display usage message. If we're inside a command, display only the usage for 407 * that command. Otherwise, iterate over the entire command table and display 408 * a complete usage message. 409 */ 410 static void 411 usage(boolean_t requested) 412 { 413 int i; 414 boolean_t show_properties = B_FALSE; 415 FILE *fp = requested ? stdout : stderr; 416 417 if (current_command == NULL) { 418 419 (void) fprintf(fp, gettext("usage: zfs command args ...\n")); 420 (void) fprintf(fp, 421 gettext("where 'command' is one of the following:\n\n")); 422 423 for (i = 0; i < NCOMMAND; i++) { 424 if (command_table[i].name == NULL) 425 (void) fprintf(fp, "\n"); 426 else 427 (void) fprintf(fp, "%s", 428 get_usage(command_table[i].usage)); 429 } 430 431 (void) fprintf(fp, gettext("\nEach dataset is of the form: " 432 "pool/[dataset/]*dataset[@name]\n")); 433 } else { 434 (void) fprintf(fp, gettext("usage:\n")); 435 (void) fprintf(fp, "%s", get_usage(current_command->usage)); 436 } 437 438 if (current_command != NULL && 439 (strcmp(current_command->name, "set") == 0 || 440 strcmp(current_command->name, "get") == 0 || 441 strcmp(current_command->name, "inherit") == 0 || 442 strcmp(current_command->name, "list") == 0)) 443 show_properties = B_TRUE; 444 445 if (show_properties) { 446 (void) fprintf(fp, 447 gettext("\nThe following properties are supported:\n")); 448 449 (void) fprintf(fp, "\n\t%-14s %s %s %s\n\n", 450 "PROPERTY", "EDIT", "INHERIT", "VALUES"); 451 452 /* Iterate over all properties */ 453 (void) zprop_iter(usage_prop_cb, fp, B_FALSE, B_TRUE, 454 ZFS_TYPE_DATASET); 455 456 (void) fprintf(fp, "\t%-15s ", "userused@..."); 457 (void) fprintf(fp, " NO NO <size>\n"); 458 (void) fprintf(fp, "\t%-15s ", "groupused@..."); 459 (void) fprintf(fp, " NO NO <size>\n"); 460 (void) fprintf(fp, "\t%-15s ", "userquota@..."); 461 (void) fprintf(fp, "YES NO <size> | none\n"); 462 (void) fprintf(fp, "\t%-15s ", "groupquota@..."); 463 (void) fprintf(fp, "YES NO <size> | none\n"); 464 (void) fprintf(fp, "\t%-15s ", "written@<snap>"); 465 (void) fprintf(fp, " NO NO <size>\n"); 466 467 (void) fprintf(fp, gettext("\nSizes are specified in bytes " 468 "with standard units such as K, M, G, etc.\n")); 469 (void) fprintf(fp, gettext("\nUser-defined properties can " 470 "be specified by using a name containing a colon (:).\n")); 471 (void) fprintf(fp, gettext("\nThe {user|group}{used|quota}@ " 472 "properties must be appended with\n" 473 "a user or group specifier of one of these forms:\n" 474 " POSIX name (eg: \"matt\")\n" 475 " POSIX id (eg: \"126829\")\n" 476 " SMB name@domain (eg: \"matt@sun\")\n" 477 " SMB SID (eg: \"S-1-234-567-89\")\n")); 478 } else { 479 (void) fprintf(fp, 480 gettext("\nFor the property list, run: %s\n"), 481 "zfs set|get"); 482 (void) fprintf(fp, 483 gettext("\nFor the delegated permission list, run: %s\n"), 484 "zfs allow|unallow"); 485 } 486 487 /* 488 * See comments at end of main(). 489 */ 490 if (getenv("ZFS_ABORT") != NULL) { 491 (void) printf("dumping core by request\n"); 492 abort(); 493 } 494 495 exit(requested ? 0 : 2); 496 } 497 498 /* 499 * Take a property=value argument string and add it to the given nvlist. 500 * Modifies the argument inplace. 501 */ 502 static int 503 parseprop(nvlist_t *props, char *propname) 504 { 505 char *propval, *strval; 506 507 if ((propval = strchr(propname, '=')) == NULL) { 508 (void) fprintf(stderr, gettext("missing " 509 "'=' for property=value argument\n")); 510 return (-1); 511 } 512 *propval = '\0'; 513 propval++; 514 if (nvlist_lookup_string(props, propname, &strval) == 0) { 515 (void) fprintf(stderr, gettext("property '%s' " 516 "specified multiple times\n"), propname); 517 return (-1); 518 } 519 if (nvlist_add_string(props, propname, propval) != 0) 520 nomem(); 521 return (0); 522 } 523 524 static int 525 parse_depth(char *opt, int *flags) 526 { 527 char *tmp; 528 int depth; 529 530 depth = (int)strtol(opt, &tmp, 0); 531 if (*tmp) { 532 (void) fprintf(stderr, 533 gettext("%s is not an integer\n"), optarg); 534 usage(B_FALSE); 535 } 536 if (depth < 0) { 537 (void) fprintf(stderr, 538 gettext("Depth can not be negative.\n")); 539 usage(B_FALSE); 540 } 541 *flags |= (ZFS_ITER_DEPTH_LIMIT|ZFS_ITER_RECURSE); 542 return (depth); 543 } 544 545 #define PROGRESS_DELAY 2 /* seconds */ 546 547 static char *pt_reverse = "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"; 548 static time_t pt_begin; 549 static char *pt_header = NULL; 550 static boolean_t pt_shown; 551 552 static void 553 start_progress_timer(void) 554 { 555 pt_begin = time(NULL) + PROGRESS_DELAY; 556 pt_shown = B_FALSE; 557 } 558 559 static void 560 set_progress_header(char *header) 561 { 562 assert(pt_header == NULL); 563 pt_header = safe_strdup(header); 564 if (pt_shown) { 565 (void) printf("%s: ", header); 566 (void) fflush(stdout); 567 } 568 } 569 570 static void 571 update_progress(char *update) 572 { 573 if (!pt_shown && time(NULL) > pt_begin) { 574 int len = strlen(update); 575 576 (void) printf("%s: %s%*.*s", pt_header, update, len, len, 577 pt_reverse); 578 (void) fflush(stdout); 579 pt_shown = B_TRUE; 580 } else if (pt_shown) { 581 int len = strlen(update); 582 583 (void) printf("%s%*.*s", update, len, len, pt_reverse); 584 (void) fflush(stdout); 585 } 586 } 587 588 static void 589 finish_progress(char *done) 590 { 591 if (pt_shown) { 592 (void) printf("%s\n", done); 593 (void) fflush(stdout); 594 } 595 free(pt_header); 596 pt_header = NULL; 597 } 598 599 /* 600 * Check if the dataset is mountable and should be automatically mounted. 601 */ 602 static boolean_t 603 should_auto_mount(zfs_handle_t *zhp) 604 { 605 if (!zfs_prop_valid_for_type(ZFS_PROP_CANMOUNT, zfs_get_type(zhp))) 606 return (B_FALSE); 607 return (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON); 608 } 609 610 /* 611 * zfs clone [-p] [-o prop=value] ... <snap> <fs | vol> 612 * 613 * Given an existing dataset, create a writable copy whose initial contents 614 * are the same as the source. The newly created dataset maintains a 615 * dependency on the original; the original cannot be destroyed so long as 616 * the clone exists. 617 * 618 * The '-p' flag creates all the non-existing ancestors of the target first. 619 */ 620 static int 621 zfs_do_clone(int argc, char **argv) 622 { 623 zfs_handle_t *zhp = NULL; 624 boolean_t parents = B_FALSE; 625 nvlist_t *props; 626 int ret = 0; 627 int c; 628 629 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 630 nomem(); 631 632 /* check options */ 633 while ((c = getopt(argc, argv, "o:p")) != -1) { 634 switch (c) { 635 case 'o': 636 if (parseprop(props, optarg) != 0) 637 return (1); 638 break; 639 case 'p': 640 parents = B_TRUE; 641 break; 642 case '?': 643 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 644 optopt); 645 goto usage; 646 } 647 } 648 649 argc -= optind; 650 argv += optind; 651 652 /* check number of arguments */ 653 if (argc < 1) { 654 (void) fprintf(stderr, gettext("missing source dataset " 655 "argument\n")); 656 goto usage; 657 } 658 if (argc < 2) { 659 (void) fprintf(stderr, gettext("missing target dataset " 660 "argument\n")); 661 goto usage; 662 } 663 if (argc > 2) { 664 (void) fprintf(stderr, gettext("too many arguments\n")); 665 goto usage; 666 } 667 668 /* open the source dataset */ 669 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 670 return (1); 671 672 if (parents && zfs_name_valid(argv[1], ZFS_TYPE_FILESYSTEM | 673 ZFS_TYPE_VOLUME)) { 674 /* 675 * Now create the ancestors of the target dataset. If the 676 * target already exists and '-p' option was used we should not 677 * complain. 678 */ 679 if (zfs_dataset_exists(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | 680 ZFS_TYPE_VOLUME)) 681 return (0); 682 if (zfs_create_ancestors(g_zfs, argv[1]) != 0) 683 return (1); 684 } 685 686 /* pass to libzfs */ 687 ret = zfs_clone(zhp, argv[1], props); 688 689 /* create the mountpoint if necessary */ 690 if (ret == 0) { 691 zfs_handle_t *clone; 692 693 clone = zfs_open(g_zfs, argv[1], ZFS_TYPE_DATASET); 694 if (clone != NULL) { 695 /* 696 * If the user doesn't want the dataset 697 * automatically mounted, then skip the mount/share 698 * step. 699 */ 700 if (should_auto_mount(clone)) { 701 if ((ret = zfs_mount(clone, NULL, 0)) != 0) { 702 (void) fprintf(stderr, gettext("clone " 703 "successfully created, " 704 "but not mounted\n")); 705 } else if ((ret = zfs_share(clone)) != 0) { 706 (void) fprintf(stderr, gettext("clone " 707 "successfully created, " 708 "but not shared\n")); 709 } 710 } 711 zfs_close(clone); 712 } 713 } 714 715 zfs_close(zhp); 716 nvlist_free(props); 717 718 return (!!ret); 719 720 usage: 721 if (zhp) 722 zfs_close(zhp); 723 nvlist_free(props); 724 usage(B_FALSE); 725 return (-1); 726 } 727 728 /* 729 * zfs create [-p] [-o prop=value] ... fs 730 * zfs create [-ps] [-b blocksize] [-o prop=value] ... -V vol size 731 * 732 * Create a new dataset. This command can be used to create filesystems 733 * and volumes. Snapshot creation is handled by 'zfs snapshot'. 734 * For volumes, the user must specify a size to be used. 735 * 736 * The '-s' flag applies only to volumes, and indicates that we should not try 737 * to set the reservation for this volume. By default we set a reservation 738 * equal to the size for any volume. For pools with SPA_VERSION >= 739 * SPA_VERSION_REFRESERVATION, we set a refreservation instead. 740 * 741 * The '-p' flag creates all the non-existing ancestors of the target first. 742 */ 743 static int 744 zfs_do_create(int argc, char **argv) 745 { 746 zfs_type_t type = ZFS_TYPE_FILESYSTEM; 747 zfs_handle_t *zhp = NULL; 748 uint64_t volsize = 0; 749 int c; 750 boolean_t noreserve = B_FALSE; 751 boolean_t bflag = B_FALSE; 752 boolean_t parents = B_FALSE; 753 int ret = 1; 754 nvlist_t *props; 755 uint64_t intval; 756 757 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 758 nomem(); 759 760 /* check options */ 761 while ((c = getopt(argc, argv, ":V:b:so:p")) != -1) { 762 switch (c) { 763 case 'V': 764 type = ZFS_TYPE_VOLUME; 765 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 766 (void) fprintf(stderr, gettext("bad volume " 767 "size '%s': %s\n"), optarg, 768 libzfs_error_description(g_zfs)); 769 goto error; 770 } 771 772 if (nvlist_add_uint64(props, 773 zfs_prop_to_name(ZFS_PROP_VOLSIZE), intval) != 0) 774 nomem(); 775 volsize = intval; 776 break; 777 case 'p': 778 parents = B_TRUE; 779 break; 780 case 'b': 781 bflag = B_TRUE; 782 if (zfs_nicestrtonum(g_zfs, optarg, &intval) != 0) { 783 (void) fprintf(stderr, gettext("bad volume " 784 "block size '%s': %s\n"), optarg, 785 libzfs_error_description(g_zfs)); 786 goto error; 787 } 788 789 if (nvlist_add_uint64(props, 790 zfs_prop_to_name(ZFS_PROP_VOLBLOCKSIZE), 791 intval) != 0) 792 nomem(); 793 break; 794 case 'o': 795 if (parseprop(props, optarg) != 0) 796 goto error; 797 break; 798 case 's': 799 noreserve = B_TRUE; 800 break; 801 case ':': 802 (void) fprintf(stderr, gettext("missing size " 803 "argument\n")); 804 goto badusage; 805 case '?': 806 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 807 optopt); 808 goto badusage; 809 } 810 } 811 812 if ((bflag || noreserve) && type != ZFS_TYPE_VOLUME) { 813 (void) fprintf(stderr, gettext("'-s' and '-b' can only be " 814 "used when creating a volume\n")); 815 goto badusage; 816 } 817 818 argc -= optind; 819 argv += optind; 820 821 /* check number of arguments */ 822 if (argc == 0) { 823 (void) fprintf(stderr, gettext("missing %s argument\n"), 824 zfs_type_to_name(type)); 825 goto badusage; 826 } 827 if (argc > 1) { 828 (void) fprintf(stderr, gettext("too many arguments\n")); 829 goto badusage; 830 } 831 832 if (type == ZFS_TYPE_VOLUME && !noreserve) { 833 zpool_handle_t *zpool_handle; 834 nvlist_t *real_props = NULL; 835 uint64_t spa_version; 836 char *p; 837 zfs_prop_t resv_prop; 838 char *strval; 839 char msg[1024]; 840 841 if ((p = strchr(argv[0], '/')) != NULL) 842 *p = '\0'; 843 zpool_handle = zpool_open(g_zfs, argv[0]); 844 if (p != NULL) 845 *p = '/'; 846 if (zpool_handle == NULL) 847 goto error; 848 spa_version = zpool_get_prop_int(zpool_handle, 849 ZPOOL_PROP_VERSION, NULL); 850 if (spa_version >= SPA_VERSION_REFRESERVATION) 851 resv_prop = ZFS_PROP_REFRESERVATION; 852 else 853 resv_prop = ZFS_PROP_RESERVATION; 854 855 (void) snprintf(msg, sizeof (msg), 856 gettext("cannot create '%s'"), argv[0]); 857 if (props && (real_props = zfs_valid_proplist(g_zfs, type, 858 props, 0, NULL, zpool_handle, msg)) == NULL) { 859 zpool_close(zpool_handle); 860 goto error; 861 } 862 zpool_close(zpool_handle); 863 864 volsize = zvol_volsize_to_reservation(volsize, real_props); 865 nvlist_free(real_props); 866 867 if (nvlist_lookup_string(props, zfs_prop_to_name(resv_prop), 868 &strval) != 0) { 869 if (nvlist_add_uint64(props, 870 zfs_prop_to_name(resv_prop), volsize) != 0) { 871 nvlist_free(props); 872 nomem(); 873 } 874 } 875 } 876 877 if (parents && zfs_name_valid(argv[0], type)) { 878 /* 879 * Now create the ancestors of target dataset. If the target 880 * already exists and '-p' option was used we should not 881 * complain. 882 */ 883 if (zfs_dataset_exists(g_zfs, argv[0], type)) { 884 ret = 0; 885 goto error; 886 } 887 if (zfs_create_ancestors(g_zfs, argv[0]) != 0) 888 goto error; 889 } 890 891 /* pass to libzfs */ 892 if (zfs_create(g_zfs, argv[0], type, props) != 0) 893 goto error; 894 895 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 896 goto error; 897 898 ret = 0; 899 900 /* 901 * Mount and/or share the new filesystem as appropriate. We provide a 902 * verbose error message to let the user know that their filesystem was 903 * in fact created, even if we failed to mount or share it. 904 * If the user doesn't want the dataset automatically mounted, 905 * then skip the mount/share step altogether. 906 */ 907 if (should_auto_mount(zhp)) { 908 if (zfs_mount(zhp, NULL, 0) != 0) { 909 (void) fprintf(stderr, gettext("filesystem " 910 "successfully created, but not mounted\n")); 911 ret = 1; 912 } else if (zfs_share(zhp) != 0) { 913 (void) fprintf(stderr, gettext("filesystem " 914 "successfully created, but not shared\n")); 915 ret = 1; 916 } 917 } 918 919 error: 920 if (zhp) 921 zfs_close(zhp); 922 nvlist_free(props); 923 return (ret); 924 badusage: 925 nvlist_free(props); 926 usage(B_FALSE); 927 return (2); 928 } 929 930 /* 931 * zfs destroy [-rRf] <fs, vol> 932 * zfs destroy [-rRd] <snap> 933 * 934 * -r Recursively destroy all children 935 * -R Recursively destroy all dependents, including clones 936 * -f Force unmounting of any dependents 937 * -d If we can't destroy now, mark for deferred destruction 938 * 939 * Destroys the given dataset. By default, it will unmount any filesystems, 940 * and refuse to destroy a dataset that has any dependents. A dependent can 941 * either be a child, or a clone of a child. 942 */ 943 typedef struct destroy_cbdata { 944 boolean_t cb_first; 945 boolean_t cb_force; 946 boolean_t cb_recurse; 947 boolean_t cb_error; 948 boolean_t cb_doclones; 949 zfs_handle_t *cb_target; 950 boolean_t cb_defer_destroy; 951 boolean_t cb_verbose; 952 boolean_t cb_parsable; 953 boolean_t cb_dryrun; 954 nvlist_t *cb_nvl; 955 nvlist_t *cb_batchedsnaps; 956 957 /* first snap in contiguous run */ 958 char *cb_firstsnap; 959 /* previous snap in contiguous run */ 960 char *cb_prevsnap; 961 int64_t cb_snapused; 962 char *cb_snapspec; 963 char *cb_bookmark; 964 } destroy_cbdata_t; 965 966 /* 967 * Check for any dependents based on the '-r' or '-R' flags. 968 */ 969 static int 970 destroy_check_dependent(zfs_handle_t *zhp, void *data) 971 { 972 destroy_cbdata_t *cbp = data; 973 const char *tname = zfs_get_name(cbp->cb_target); 974 const char *name = zfs_get_name(zhp); 975 976 if (strncmp(tname, name, strlen(tname)) == 0 && 977 (name[strlen(tname)] == '/' || name[strlen(tname)] == '@')) { 978 /* 979 * This is a direct descendant, not a clone somewhere else in 980 * the hierarchy. 981 */ 982 if (cbp->cb_recurse) 983 goto out; 984 985 if (cbp->cb_first) { 986 (void) fprintf(stderr, gettext("cannot destroy '%s': " 987 "%s has children\n"), 988 zfs_get_name(cbp->cb_target), 989 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 990 (void) fprintf(stderr, gettext("use '-r' to destroy " 991 "the following datasets:\n")); 992 cbp->cb_first = B_FALSE; 993 cbp->cb_error = B_TRUE; 994 } 995 996 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 997 } else { 998 /* 999 * This is a clone. We only want to report this if the '-r' 1000 * wasn't specified, or the target is a snapshot. 1001 */ 1002 if (!cbp->cb_recurse && 1003 zfs_get_type(cbp->cb_target) != ZFS_TYPE_SNAPSHOT) 1004 goto out; 1005 1006 if (cbp->cb_first) { 1007 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1008 "%s has dependent clones\n"), 1009 zfs_get_name(cbp->cb_target), 1010 zfs_type_to_name(zfs_get_type(cbp->cb_target))); 1011 (void) fprintf(stderr, gettext("use '-R' to destroy " 1012 "the following datasets:\n")); 1013 cbp->cb_first = B_FALSE; 1014 cbp->cb_error = B_TRUE; 1015 cbp->cb_dryrun = B_TRUE; 1016 } 1017 1018 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 1019 } 1020 1021 out: 1022 zfs_close(zhp); 1023 return (0); 1024 } 1025 1026 static int 1027 destroy_callback(zfs_handle_t *zhp, void *data) 1028 { 1029 destroy_cbdata_t *cb = data; 1030 const char *name = zfs_get_name(zhp); 1031 1032 if (cb->cb_verbose) { 1033 if (cb->cb_parsable) { 1034 (void) printf("destroy\t%s\n", name); 1035 } else if (cb->cb_dryrun) { 1036 (void) printf(gettext("would destroy %s\n"), 1037 name); 1038 } else { 1039 (void) printf(gettext("will destroy %s\n"), 1040 name); 1041 } 1042 } 1043 1044 /* 1045 * Ignore pools (which we've already flagged as an error before getting 1046 * here). 1047 */ 1048 if (strchr(zfs_get_name(zhp), '/') == NULL && 1049 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1050 zfs_close(zhp); 1051 return (0); 1052 } 1053 if (cb->cb_dryrun) { 1054 zfs_close(zhp); 1055 return (0); 1056 } 1057 1058 /* 1059 * We batch up all contiguous snapshots (even of different 1060 * filesystems) and destroy them with one ioctl. We can't 1061 * simply do all snap deletions and then all fs deletions, 1062 * because we must delete a clone before its origin. 1063 */ 1064 if (zfs_get_type(zhp) == ZFS_TYPE_SNAPSHOT) { 1065 fnvlist_add_boolean(cb->cb_batchedsnaps, name); 1066 } else { 1067 int error = zfs_destroy_snaps_nvl(g_zfs, 1068 cb->cb_batchedsnaps, B_FALSE); 1069 fnvlist_free(cb->cb_batchedsnaps); 1070 cb->cb_batchedsnaps = fnvlist_alloc(); 1071 1072 if (error != 0 || 1073 zfs_unmount(zhp, NULL, cb->cb_force ? MS_FORCE : 0) != 0 || 1074 zfs_destroy(zhp, cb->cb_defer_destroy) != 0) { 1075 zfs_close(zhp); 1076 return (-1); 1077 } 1078 } 1079 1080 zfs_close(zhp); 1081 return (0); 1082 } 1083 1084 static int 1085 destroy_print_cb(zfs_handle_t *zhp, void *arg) 1086 { 1087 destroy_cbdata_t *cb = arg; 1088 const char *name = zfs_get_name(zhp); 1089 int err = 0; 1090 1091 if (nvlist_exists(cb->cb_nvl, name)) { 1092 if (cb->cb_firstsnap == NULL) 1093 cb->cb_firstsnap = strdup(name); 1094 if (cb->cb_prevsnap != NULL) 1095 free(cb->cb_prevsnap); 1096 /* this snap continues the current range */ 1097 cb->cb_prevsnap = strdup(name); 1098 if (cb->cb_firstsnap == NULL || cb->cb_prevsnap == NULL) 1099 nomem(); 1100 if (cb->cb_verbose) { 1101 if (cb->cb_parsable) { 1102 (void) printf("destroy\t%s\n", name); 1103 } else if (cb->cb_dryrun) { 1104 (void) printf(gettext("would destroy %s\n"), 1105 name); 1106 } else { 1107 (void) printf(gettext("will destroy %s\n"), 1108 name); 1109 } 1110 } 1111 } else if (cb->cb_firstsnap != NULL) { 1112 /* end of this range */ 1113 uint64_t used = 0; 1114 err = lzc_snaprange_space(cb->cb_firstsnap, 1115 cb->cb_prevsnap, &used); 1116 cb->cb_snapused += used; 1117 free(cb->cb_firstsnap); 1118 cb->cb_firstsnap = NULL; 1119 free(cb->cb_prevsnap); 1120 cb->cb_prevsnap = NULL; 1121 } 1122 zfs_close(zhp); 1123 return (err); 1124 } 1125 1126 static int 1127 destroy_print_snapshots(zfs_handle_t *fs_zhp, destroy_cbdata_t *cb) 1128 { 1129 int err = 0; 1130 assert(cb->cb_firstsnap == NULL); 1131 assert(cb->cb_prevsnap == NULL); 1132 err = zfs_iter_snapshots_sorted(fs_zhp, destroy_print_cb, cb); 1133 if (cb->cb_firstsnap != NULL) { 1134 uint64_t used = 0; 1135 if (err == 0) { 1136 err = lzc_snaprange_space(cb->cb_firstsnap, 1137 cb->cb_prevsnap, &used); 1138 } 1139 cb->cb_snapused += used; 1140 free(cb->cb_firstsnap); 1141 cb->cb_firstsnap = NULL; 1142 free(cb->cb_prevsnap); 1143 cb->cb_prevsnap = NULL; 1144 } 1145 return (err); 1146 } 1147 1148 static int 1149 snapshot_to_nvl_cb(zfs_handle_t *zhp, void *arg) 1150 { 1151 destroy_cbdata_t *cb = arg; 1152 int err = 0; 1153 1154 /* Check for clones. */ 1155 if (!cb->cb_doclones && !cb->cb_defer_destroy) { 1156 cb->cb_target = zhp; 1157 cb->cb_first = B_TRUE; 1158 err = zfs_iter_dependents(zhp, B_TRUE, 1159 destroy_check_dependent, cb); 1160 } 1161 1162 if (err == 0) { 1163 if (nvlist_add_boolean(cb->cb_nvl, zfs_get_name(zhp))) 1164 nomem(); 1165 } 1166 zfs_close(zhp); 1167 return (err); 1168 } 1169 1170 static int 1171 gather_snapshots(zfs_handle_t *zhp, void *arg) 1172 { 1173 destroy_cbdata_t *cb = arg; 1174 int err = 0; 1175 1176 err = zfs_iter_snapspec(zhp, cb->cb_snapspec, snapshot_to_nvl_cb, cb); 1177 if (err == ENOENT) 1178 err = 0; 1179 if (err != 0) 1180 goto out; 1181 1182 if (cb->cb_verbose) { 1183 err = destroy_print_snapshots(zhp, cb); 1184 if (err != 0) 1185 goto out; 1186 } 1187 1188 if (cb->cb_recurse) 1189 err = zfs_iter_filesystems(zhp, gather_snapshots, cb); 1190 1191 out: 1192 zfs_close(zhp); 1193 return (err); 1194 } 1195 1196 static int 1197 destroy_clones(destroy_cbdata_t *cb) 1198 { 1199 nvpair_t *pair; 1200 for (pair = nvlist_next_nvpair(cb->cb_nvl, NULL); 1201 pair != NULL; 1202 pair = nvlist_next_nvpair(cb->cb_nvl, pair)) { 1203 zfs_handle_t *zhp = zfs_open(g_zfs, nvpair_name(pair), 1204 ZFS_TYPE_SNAPSHOT); 1205 if (zhp != NULL) { 1206 boolean_t defer = cb->cb_defer_destroy; 1207 int err = 0; 1208 1209 /* 1210 * We can't defer destroy non-snapshots, so set it to 1211 * false while destroying the clones. 1212 */ 1213 cb->cb_defer_destroy = B_FALSE; 1214 err = zfs_iter_dependents(zhp, B_FALSE, 1215 destroy_callback, cb); 1216 cb->cb_defer_destroy = defer; 1217 zfs_close(zhp); 1218 if (err != 0) 1219 return (err); 1220 } 1221 } 1222 return (0); 1223 } 1224 1225 static int 1226 zfs_do_destroy(int argc, char **argv) 1227 { 1228 destroy_cbdata_t cb = { 0 }; 1229 int rv = 0; 1230 int err = 0; 1231 int c; 1232 zfs_handle_t *zhp = NULL; 1233 char *at, *pound; 1234 zfs_type_t type = ZFS_TYPE_DATASET; 1235 1236 /* check options */ 1237 while ((c = getopt(argc, argv, "vpndfrR")) != -1) { 1238 switch (c) { 1239 case 'v': 1240 cb.cb_verbose = B_TRUE; 1241 break; 1242 case 'p': 1243 cb.cb_verbose = B_TRUE; 1244 cb.cb_parsable = B_TRUE; 1245 break; 1246 case 'n': 1247 cb.cb_dryrun = B_TRUE; 1248 break; 1249 case 'd': 1250 cb.cb_defer_destroy = B_TRUE; 1251 type = ZFS_TYPE_SNAPSHOT; 1252 break; 1253 case 'f': 1254 cb.cb_force = B_TRUE; 1255 break; 1256 case 'r': 1257 cb.cb_recurse = B_TRUE; 1258 break; 1259 case 'R': 1260 cb.cb_recurse = B_TRUE; 1261 cb.cb_doclones = B_TRUE; 1262 break; 1263 case '?': 1264 default: 1265 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1266 optopt); 1267 usage(B_FALSE); 1268 } 1269 } 1270 1271 argc -= optind; 1272 argv += optind; 1273 1274 /* check number of arguments */ 1275 if (argc == 0) { 1276 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1277 usage(B_FALSE); 1278 } 1279 if (argc > 1) { 1280 (void) fprintf(stderr, gettext("too many arguments\n")); 1281 usage(B_FALSE); 1282 } 1283 1284 at = strchr(argv[0], '@'); 1285 pound = strchr(argv[0], '#'); 1286 if (at != NULL) { 1287 1288 /* Build the list of snaps to destroy in cb_nvl. */ 1289 cb.cb_nvl = fnvlist_alloc(); 1290 1291 *at = '\0'; 1292 zhp = zfs_open(g_zfs, argv[0], 1293 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 1294 if (zhp == NULL) 1295 return (1); 1296 1297 cb.cb_snapspec = at + 1; 1298 if (gather_snapshots(zfs_handle_dup(zhp), &cb) != 0 || 1299 cb.cb_error) { 1300 rv = 1; 1301 goto out; 1302 } 1303 1304 if (nvlist_empty(cb.cb_nvl)) { 1305 (void) fprintf(stderr, gettext("could not find any " 1306 "snapshots to destroy; check snapshot names.\n")); 1307 rv = 1; 1308 goto out; 1309 } 1310 1311 if (cb.cb_verbose) { 1312 char buf[16]; 1313 zfs_nicenum(cb.cb_snapused, buf, sizeof (buf)); 1314 if (cb.cb_parsable) { 1315 (void) printf("reclaim\t%llu\n", 1316 cb.cb_snapused); 1317 } else if (cb.cb_dryrun) { 1318 (void) printf(gettext("would reclaim %s\n"), 1319 buf); 1320 } else { 1321 (void) printf(gettext("will reclaim %s\n"), 1322 buf); 1323 } 1324 } 1325 1326 if (!cb.cb_dryrun) { 1327 if (cb.cb_doclones) { 1328 cb.cb_batchedsnaps = fnvlist_alloc(); 1329 err = destroy_clones(&cb); 1330 if (err == 0) { 1331 err = zfs_destroy_snaps_nvl(g_zfs, 1332 cb.cb_batchedsnaps, B_FALSE); 1333 } 1334 if (err != 0) { 1335 rv = 1; 1336 goto out; 1337 } 1338 } 1339 if (err == 0) { 1340 err = zfs_destroy_snaps_nvl(g_zfs, cb.cb_nvl, 1341 cb.cb_defer_destroy); 1342 } 1343 } 1344 1345 if (err != 0) 1346 rv = 1; 1347 } else if (pound != NULL) { 1348 int err; 1349 nvlist_t *nvl; 1350 1351 if (cb.cb_dryrun) { 1352 (void) fprintf(stderr, 1353 "dryrun is not supported with bookmark\n"); 1354 return (-1); 1355 } 1356 1357 if (cb.cb_defer_destroy) { 1358 (void) fprintf(stderr, 1359 "defer destroy is not supported with bookmark\n"); 1360 return (-1); 1361 } 1362 1363 if (cb.cb_recurse) { 1364 (void) fprintf(stderr, 1365 "recursive is not supported with bookmark\n"); 1366 return (-1); 1367 } 1368 1369 if (!zfs_bookmark_exists(argv[0])) { 1370 (void) fprintf(stderr, gettext("bookmark '%s' " 1371 "does not exist.\n"), argv[0]); 1372 return (1); 1373 } 1374 1375 nvl = fnvlist_alloc(); 1376 fnvlist_add_boolean(nvl, argv[0]); 1377 1378 err = lzc_destroy_bookmarks(nvl, NULL); 1379 if (err != 0) { 1380 (void) zfs_standard_error(g_zfs, err, 1381 "cannot destroy bookmark"); 1382 } 1383 1384 nvlist_free(cb.cb_nvl); 1385 1386 return (err); 1387 } else { 1388 /* Open the given dataset */ 1389 if ((zhp = zfs_open(g_zfs, argv[0], type)) == NULL) 1390 return (1); 1391 1392 cb.cb_target = zhp; 1393 1394 /* 1395 * Perform an explicit check for pools before going any further. 1396 */ 1397 if (!cb.cb_recurse && strchr(zfs_get_name(zhp), '/') == NULL && 1398 zfs_get_type(zhp) == ZFS_TYPE_FILESYSTEM) { 1399 (void) fprintf(stderr, gettext("cannot destroy '%s': " 1400 "operation does not apply to pools\n"), 1401 zfs_get_name(zhp)); 1402 (void) fprintf(stderr, gettext("use 'zfs destroy -r " 1403 "%s' to destroy all datasets in the pool\n"), 1404 zfs_get_name(zhp)); 1405 (void) fprintf(stderr, gettext("use 'zpool destroy %s' " 1406 "to destroy the pool itself\n"), zfs_get_name(zhp)); 1407 rv = 1; 1408 goto out; 1409 } 1410 1411 /* 1412 * Check for any dependents and/or clones. 1413 */ 1414 cb.cb_first = B_TRUE; 1415 if (!cb.cb_doclones && 1416 zfs_iter_dependents(zhp, B_TRUE, destroy_check_dependent, 1417 &cb) != 0) { 1418 rv = 1; 1419 goto out; 1420 } 1421 1422 if (cb.cb_error) { 1423 rv = 1; 1424 goto out; 1425 } 1426 1427 cb.cb_batchedsnaps = fnvlist_alloc(); 1428 if (zfs_iter_dependents(zhp, B_FALSE, destroy_callback, 1429 &cb) != 0) { 1430 rv = 1; 1431 goto out; 1432 } 1433 1434 /* 1435 * Do the real thing. The callback will close the 1436 * handle regardless of whether it succeeds or not. 1437 */ 1438 err = destroy_callback(zhp, &cb); 1439 zhp = NULL; 1440 if (err == 0) { 1441 err = zfs_destroy_snaps_nvl(g_zfs, 1442 cb.cb_batchedsnaps, cb.cb_defer_destroy); 1443 } 1444 if (err != 0) 1445 rv = 1; 1446 } 1447 1448 out: 1449 fnvlist_free(cb.cb_batchedsnaps); 1450 fnvlist_free(cb.cb_nvl); 1451 if (zhp != NULL) 1452 zfs_close(zhp); 1453 return (rv); 1454 } 1455 1456 static boolean_t 1457 is_recvd_column(zprop_get_cbdata_t *cbp) 1458 { 1459 int i; 1460 zfs_get_column_t col; 1461 1462 for (i = 0; i < ZFS_GET_NCOLS && 1463 (col = cbp->cb_columns[i]) != GET_COL_NONE; i++) 1464 if (col == GET_COL_RECVD) 1465 return (B_TRUE); 1466 return (B_FALSE); 1467 } 1468 1469 /* 1470 * zfs get [-rHp] [-o all | field[,field]...] [-s source[,source]...] 1471 * < all | property[,property]... > < fs | snap | vol > ... 1472 * 1473 * -r recurse over any child datasets 1474 * -H scripted mode. Headers are stripped, and fields are separated 1475 * by tabs instead of spaces. 1476 * -o Set of fields to display. One of "name,property,value, 1477 * received,source". Default is "name,property,value,source". 1478 * "all" is an alias for all five. 1479 * -s Set of sources to allow. One of 1480 * "local,default,inherited,received,temporary,none". Default is 1481 * all six. 1482 * -p Display values in parsable (literal) format. 1483 * 1484 * Prints properties for the given datasets. The user can control which 1485 * columns to display as well as which property types to allow. 1486 */ 1487 1488 /* 1489 * Invoked to display the properties for a single dataset. 1490 */ 1491 static int 1492 get_callback(zfs_handle_t *zhp, void *data) 1493 { 1494 char buf[ZFS_MAXPROPLEN]; 1495 char rbuf[ZFS_MAXPROPLEN]; 1496 zprop_source_t sourcetype; 1497 char source[ZFS_MAXNAMELEN]; 1498 zprop_get_cbdata_t *cbp = data; 1499 nvlist_t *user_props = zfs_get_user_props(zhp); 1500 zprop_list_t *pl = cbp->cb_proplist; 1501 nvlist_t *propval; 1502 char *strval; 1503 char *sourceval; 1504 boolean_t received = is_recvd_column(cbp); 1505 1506 for (; pl != NULL; pl = pl->pl_next) { 1507 char *recvdval = NULL; 1508 /* 1509 * Skip the special fake placeholder. This will also skip over 1510 * the name property when 'all' is specified. 1511 */ 1512 if (pl->pl_prop == ZFS_PROP_NAME && 1513 pl == cbp->cb_proplist) 1514 continue; 1515 1516 if (pl->pl_prop != ZPROP_INVAL) { 1517 if (zfs_prop_get(zhp, pl->pl_prop, buf, 1518 sizeof (buf), &sourcetype, source, 1519 sizeof (source), 1520 cbp->cb_literal) != 0) { 1521 if (pl->pl_all) 1522 continue; 1523 if (!zfs_prop_valid_for_type(pl->pl_prop, 1524 ZFS_TYPE_DATASET)) { 1525 (void) fprintf(stderr, 1526 gettext("No such property '%s'\n"), 1527 zfs_prop_to_name(pl->pl_prop)); 1528 continue; 1529 } 1530 sourcetype = ZPROP_SRC_NONE; 1531 (void) strlcpy(buf, "-", sizeof (buf)); 1532 } 1533 1534 if (received && (zfs_prop_get_recvd(zhp, 1535 zfs_prop_to_name(pl->pl_prop), rbuf, sizeof (rbuf), 1536 cbp->cb_literal) == 0)) 1537 recvdval = rbuf; 1538 1539 zprop_print_one_property(zfs_get_name(zhp), cbp, 1540 zfs_prop_to_name(pl->pl_prop), 1541 buf, sourcetype, source, recvdval); 1542 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 1543 sourcetype = ZPROP_SRC_LOCAL; 1544 1545 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 1546 buf, sizeof (buf), cbp->cb_literal) != 0) { 1547 sourcetype = ZPROP_SRC_NONE; 1548 (void) strlcpy(buf, "-", sizeof (buf)); 1549 } 1550 1551 zprop_print_one_property(zfs_get_name(zhp), cbp, 1552 pl->pl_user_prop, buf, sourcetype, source, NULL); 1553 } else if (zfs_prop_written(pl->pl_user_prop)) { 1554 sourcetype = ZPROP_SRC_LOCAL; 1555 1556 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 1557 buf, sizeof (buf), cbp->cb_literal) != 0) { 1558 sourcetype = ZPROP_SRC_NONE; 1559 (void) strlcpy(buf, "-", sizeof (buf)); 1560 } 1561 1562 zprop_print_one_property(zfs_get_name(zhp), cbp, 1563 pl->pl_user_prop, buf, sourcetype, source, NULL); 1564 } else { 1565 if (nvlist_lookup_nvlist(user_props, 1566 pl->pl_user_prop, &propval) != 0) { 1567 if (pl->pl_all) 1568 continue; 1569 sourcetype = ZPROP_SRC_NONE; 1570 strval = "-"; 1571 } else { 1572 verify(nvlist_lookup_string(propval, 1573 ZPROP_VALUE, &strval) == 0); 1574 verify(nvlist_lookup_string(propval, 1575 ZPROP_SOURCE, &sourceval) == 0); 1576 1577 if (strcmp(sourceval, 1578 zfs_get_name(zhp)) == 0) { 1579 sourcetype = ZPROP_SRC_LOCAL; 1580 } else if (strcmp(sourceval, 1581 ZPROP_SOURCE_VAL_RECVD) == 0) { 1582 sourcetype = ZPROP_SRC_RECEIVED; 1583 } else { 1584 sourcetype = ZPROP_SRC_INHERITED; 1585 (void) strlcpy(source, 1586 sourceval, sizeof (source)); 1587 } 1588 } 1589 1590 if (received && (zfs_prop_get_recvd(zhp, 1591 pl->pl_user_prop, rbuf, sizeof (rbuf), 1592 cbp->cb_literal) == 0)) 1593 recvdval = rbuf; 1594 1595 zprop_print_one_property(zfs_get_name(zhp), cbp, 1596 pl->pl_user_prop, strval, sourcetype, 1597 source, recvdval); 1598 } 1599 } 1600 1601 return (0); 1602 } 1603 1604 static int 1605 zfs_do_get(int argc, char **argv) 1606 { 1607 zprop_get_cbdata_t cb = { 0 }; 1608 int i, c, flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 1609 int types = ZFS_TYPE_DATASET; 1610 char *value, *fields; 1611 int ret = 0; 1612 int limit = 0; 1613 zprop_list_t fake_name = { 0 }; 1614 1615 /* 1616 * Set up default columns and sources. 1617 */ 1618 cb.cb_sources = ZPROP_SRC_ALL; 1619 cb.cb_columns[0] = GET_COL_NAME; 1620 cb.cb_columns[1] = GET_COL_PROPERTY; 1621 cb.cb_columns[2] = GET_COL_VALUE; 1622 cb.cb_columns[3] = GET_COL_SOURCE; 1623 cb.cb_type = ZFS_TYPE_DATASET; 1624 1625 /* check options */ 1626 while ((c = getopt(argc, argv, ":d:o:s:rt:Hp")) != -1) { 1627 switch (c) { 1628 case 'p': 1629 cb.cb_literal = B_TRUE; 1630 break; 1631 case 'd': 1632 limit = parse_depth(optarg, &flags); 1633 break; 1634 case 'r': 1635 flags |= ZFS_ITER_RECURSE; 1636 break; 1637 case 'H': 1638 cb.cb_scripted = B_TRUE; 1639 break; 1640 case ':': 1641 (void) fprintf(stderr, gettext("missing argument for " 1642 "'%c' option\n"), optopt); 1643 usage(B_FALSE); 1644 break; 1645 case 'o': 1646 /* 1647 * Process the set of columns to display. We zero out 1648 * the structure to give us a blank slate. 1649 */ 1650 bzero(&cb.cb_columns, sizeof (cb.cb_columns)); 1651 i = 0; 1652 while (*optarg != '\0') { 1653 static char *col_subopts[] = 1654 { "name", "property", "value", "received", 1655 "source", "all", NULL }; 1656 1657 if (i == ZFS_GET_NCOLS) { 1658 (void) fprintf(stderr, gettext("too " 1659 "many fields given to -o " 1660 "option\n")); 1661 usage(B_FALSE); 1662 } 1663 1664 switch (getsubopt(&optarg, col_subopts, 1665 &value)) { 1666 case 0: 1667 cb.cb_columns[i++] = GET_COL_NAME; 1668 break; 1669 case 1: 1670 cb.cb_columns[i++] = GET_COL_PROPERTY; 1671 break; 1672 case 2: 1673 cb.cb_columns[i++] = GET_COL_VALUE; 1674 break; 1675 case 3: 1676 cb.cb_columns[i++] = GET_COL_RECVD; 1677 flags |= ZFS_ITER_RECVD_PROPS; 1678 break; 1679 case 4: 1680 cb.cb_columns[i++] = GET_COL_SOURCE; 1681 break; 1682 case 5: 1683 if (i > 0) { 1684 (void) fprintf(stderr, 1685 gettext("\"all\" conflicts " 1686 "with specific fields " 1687 "given to -o option\n")); 1688 usage(B_FALSE); 1689 } 1690 cb.cb_columns[0] = GET_COL_NAME; 1691 cb.cb_columns[1] = GET_COL_PROPERTY; 1692 cb.cb_columns[2] = GET_COL_VALUE; 1693 cb.cb_columns[3] = GET_COL_RECVD; 1694 cb.cb_columns[4] = GET_COL_SOURCE; 1695 flags |= ZFS_ITER_RECVD_PROPS; 1696 i = ZFS_GET_NCOLS; 1697 break; 1698 default: 1699 (void) fprintf(stderr, 1700 gettext("invalid column name " 1701 "'%s'\n"), value); 1702 usage(B_FALSE); 1703 } 1704 } 1705 break; 1706 1707 case 's': 1708 cb.cb_sources = 0; 1709 while (*optarg != '\0') { 1710 static char *source_subopts[] = { 1711 "local", "default", "inherited", 1712 "received", "temporary", "none", 1713 NULL }; 1714 1715 switch (getsubopt(&optarg, source_subopts, 1716 &value)) { 1717 case 0: 1718 cb.cb_sources |= ZPROP_SRC_LOCAL; 1719 break; 1720 case 1: 1721 cb.cb_sources |= ZPROP_SRC_DEFAULT; 1722 break; 1723 case 2: 1724 cb.cb_sources |= ZPROP_SRC_INHERITED; 1725 break; 1726 case 3: 1727 cb.cb_sources |= ZPROP_SRC_RECEIVED; 1728 break; 1729 case 4: 1730 cb.cb_sources |= ZPROP_SRC_TEMPORARY; 1731 break; 1732 case 5: 1733 cb.cb_sources |= ZPROP_SRC_NONE; 1734 break; 1735 default: 1736 (void) fprintf(stderr, 1737 gettext("invalid source " 1738 "'%s'\n"), value); 1739 usage(B_FALSE); 1740 } 1741 } 1742 break; 1743 1744 case 't': 1745 types = 0; 1746 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 1747 while (*optarg != '\0') { 1748 static char *type_subopts[] = { "filesystem", 1749 "volume", "snapshot", "bookmark", 1750 "all", NULL }; 1751 1752 switch (getsubopt(&optarg, type_subopts, 1753 &value)) { 1754 case 0: 1755 types |= ZFS_TYPE_FILESYSTEM; 1756 break; 1757 case 1: 1758 types |= ZFS_TYPE_VOLUME; 1759 break; 1760 case 2: 1761 types |= ZFS_TYPE_SNAPSHOT; 1762 break; 1763 case 3: 1764 types |= ZFS_TYPE_BOOKMARK; 1765 break; 1766 case 4: 1767 types = ZFS_TYPE_DATASET | 1768 ZFS_TYPE_BOOKMARK; 1769 break; 1770 1771 default: 1772 (void) fprintf(stderr, 1773 gettext("invalid type '%s'\n"), 1774 value); 1775 usage(B_FALSE); 1776 } 1777 } 1778 break; 1779 1780 case '?': 1781 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1782 optopt); 1783 usage(B_FALSE); 1784 } 1785 } 1786 1787 argc -= optind; 1788 argv += optind; 1789 1790 if (argc < 1) { 1791 (void) fprintf(stderr, gettext("missing property " 1792 "argument\n")); 1793 usage(B_FALSE); 1794 } 1795 1796 fields = argv[0]; 1797 1798 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 1799 != 0) 1800 usage(B_FALSE); 1801 1802 argc--; 1803 argv++; 1804 1805 /* 1806 * As part of zfs_expand_proplist(), we keep track of the maximum column 1807 * width for each property. For the 'NAME' (and 'SOURCE') columns, we 1808 * need to know the maximum name length. However, the user likely did 1809 * not specify 'name' as one of the properties to fetch, so we need to 1810 * make sure we always include at least this property for 1811 * print_get_headers() to work properly. 1812 */ 1813 if (cb.cb_proplist != NULL) { 1814 fake_name.pl_prop = ZFS_PROP_NAME; 1815 fake_name.pl_width = strlen(gettext("NAME")); 1816 fake_name.pl_next = cb.cb_proplist; 1817 cb.cb_proplist = &fake_name; 1818 } 1819 1820 cb.cb_first = B_TRUE; 1821 1822 /* run for each object */ 1823 ret = zfs_for_each(argc, argv, flags, types, NULL, 1824 &cb.cb_proplist, limit, get_callback, &cb); 1825 1826 if (cb.cb_proplist == &fake_name) 1827 zprop_free_list(fake_name.pl_next); 1828 else 1829 zprop_free_list(cb.cb_proplist); 1830 1831 return (ret); 1832 } 1833 1834 /* 1835 * inherit [-rS] <property> <fs|vol> ... 1836 * 1837 * -r Recurse over all children 1838 * -S Revert to received value, if any 1839 * 1840 * For each dataset specified on the command line, inherit the given property 1841 * from its parent. Inheriting a property at the pool level will cause it to 1842 * use the default value. The '-r' flag will recurse over all children, and is 1843 * useful for setting a property on a hierarchy-wide basis, regardless of any 1844 * local modifications for each dataset. 1845 */ 1846 1847 typedef struct inherit_cbdata { 1848 const char *cb_propname; 1849 boolean_t cb_received; 1850 } inherit_cbdata_t; 1851 1852 static int 1853 inherit_recurse_cb(zfs_handle_t *zhp, void *data) 1854 { 1855 inherit_cbdata_t *cb = data; 1856 zfs_prop_t prop = zfs_name_to_prop(cb->cb_propname); 1857 1858 /* 1859 * If we're doing it recursively, then ignore properties that 1860 * are not valid for this type of dataset. 1861 */ 1862 if (prop != ZPROP_INVAL && 1863 !zfs_prop_valid_for_type(prop, zfs_get_type(zhp))) 1864 return (0); 1865 1866 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1867 } 1868 1869 static int 1870 inherit_cb(zfs_handle_t *zhp, void *data) 1871 { 1872 inherit_cbdata_t *cb = data; 1873 1874 return (zfs_prop_inherit(zhp, cb->cb_propname, cb->cb_received) != 0); 1875 } 1876 1877 static int 1878 zfs_do_inherit(int argc, char **argv) 1879 { 1880 int c; 1881 zfs_prop_t prop; 1882 inherit_cbdata_t cb = { 0 }; 1883 char *propname; 1884 int ret = 0; 1885 int flags = 0; 1886 boolean_t received = B_FALSE; 1887 1888 /* check options */ 1889 while ((c = getopt(argc, argv, "rS")) != -1) { 1890 switch (c) { 1891 case 'r': 1892 flags |= ZFS_ITER_RECURSE; 1893 break; 1894 case 'S': 1895 received = B_TRUE; 1896 break; 1897 case '?': 1898 default: 1899 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 1900 optopt); 1901 usage(B_FALSE); 1902 } 1903 } 1904 1905 argc -= optind; 1906 argv += optind; 1907 1908 /* check number of arguments */ 1909 if (argc < 1) { 1910 (void) fprintf(stderr, gettext("missing property argument\n")); 1911 usage(B_FALSE); 1912 } 1913 if (argc < 2) { 1914 (void) fprintf(stderr, gettext("missing dataset argument\n")); 1915 usage(B_FALSE); 1916 } 1917 1918 propname = argv[0]; 1919 argc--; 1920 argv++; 1921 1922 if ((prop = zfs_name_to_prop(propname)) != ZPROP_INVAL) { 1923 if (zfs_prop_readonly(prop)) { 1924 (void) fprintf(stderr, gettext( 1925 "%s property is read-only\n"), 1926 propname); 1927 return (1); 1928 } 1929 if (!zfs_prop_inheritable(prop) && !received) { 1930 (void) fprintf(stderr, gettext("'%s' property cannot " 1931 "be inherited\n"), propname); 1932 if (prop == ZFS_PROP_QUOTA || 1933 prop == ZFS_PROP_RESERVATION || 1934 prop == ZFS_PROP_REFQUOTA || 1935 prop == ZFS_PROP_REFRESERVATION) { 1936 (void) fprintf(stderr, gettext("use 'zfs set " 1937 "%s=none' to clear\n"), propname); 1938 (void) fprintf(stderr, gettext("use 'zfs " 1939 "inherit -S %s' to revert to received " 1940 "value\n"), propname); 1941 } 1942 return (1); 1943 } 1944 if (received && (prop == ZFS_PROP_VOLSIZE || 1945 prop == ZFS_PROP_VERSION)) { 1946 (void) fprintf(stderr, gettext("'%s' property cannot " 1947 "be reverted to a received value\n"), propname); 1948 return (1); 1949 } 1950 } else if (!zfs_prop_user(propname)) { 1951 (void) fprintf(stderr, gettext("invalid property '%s'\n"), 1952 propname); 1953 usage(B_FALSE); 1954 } 1955 1956 cb.cb_propname = propname; 1957 cb.cb_received = received; 1958 1959 if (flags & ZFS_ITER_RECURSE) { 1960 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1961 NULL, NULL, 0, inherit_recurse_cb, &cb); 1962 } else { 1963 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_DATASET, 1964 NULL, NULL, 0, inherit_cb, &cb); 1965 } 1966 1967 return (ret); 1968 } 1969 1970 typedef struct upgrade_cbdata { 1971 uint64_t cb_numupgraded; 1972 uint64_t cb_numsamegraded; 1973 uint64_t cb_numfailed; 1974 uint64_t cb_version; 1975 boolean_t cb_newer; 1976 boolean_t cb_foundone; 1977 char cb_lastfs[ZFS_MAXNAMELEN]; 1978 } upgrade_cbdata_t; 1979 1980 static int 1981 same_pool(zfs_handle_t *zhp, const char *name) 1982 { 1983 int len1 = strcspn(name, "/@"); 1984 const char *zhname = zfs_get_name(zhp); 1985 int len2 = strcspn(zhname, "/@"); 1986 1987 if (len1 != len2) 1988 return (B_FALSE); 1989 return (strncmp(name, zhname, len1) == 0); 1990 } 1991 1992 static int 1993 upgrade_list_callback(zfs_handle_t *zhp, void *data) 1994 { 1995 upgrade_cbdata_t *cb = data; 1996 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 1997 1998 /* list if it's old/new */ 1999 if ((!cb->cb_newer && version < ZPL_VERSION) || 2000 (cb->cb_newer && version > ZPL_VERSION)) { 2001 char *str; 2002 if (cb->cb_newer) { 2003 str = gettext("The following filesystems are " 2004 "formatted using a newer software version and\n" 2005 "cannot be accessed on the current system.\n\n"); 2006 } else { 2007 str = gettext("The following filesystems are " 2008 "out of date, and can be upgraded. After being\n" 2009 "upgraded, these filesystems (and any 'zfs send' " 2010 "streams generated from\n" 2011 "subsequent snapshots) will no longer be " 2012 "accessible by older software versions.\n\n"); 2013 } 2014 2015 if (!cb->cb_foundone) { 2016 (void) puts(str); 2017 (void) printf(gettext("VER FILESYSTEM\n")); 2018 (void) printf(gettext("--- ------------\n")); 2019 cb->cb_foundone = B_TRUE; 2020 } 2021 2022 (void) printf("%2u %s\n", version, zfs_get_name(zhp)); 2023 } 2024 2025 return (0); 2026 } 2027 2028 static int 2029 upgrade_set_callback(zfs_handle_t *zhp, void *data) 2030 { 2031 upgrade_cbdata_t *cb = data; 2032 int version = zfs_prop_get_int(zhp, ZFS_PROP_VERSION); 2033 int needed_spa_version; 2034 int spa_version; 2035 2036 if (zfs_spa_version(zhp, &spa_version) < 0) 2037 return (-1); 2038 2039 needed_spa_version = zfs_spa_version_map(cb->cb_version); 2040 2041 if (needed_spa_version < 0) 2042 return (-1); 2043 2044 if (spa_version < needed_spa_version) { 2045 /* can't upgrade */ 2046 (void) printf(gettext("%s: can not be " 2047 "upgraded; the pool version needs to first " 2048 "be upgraded\nto version %d\n\n"), 2049 zfs_get_name(zhp), needed_spa_version); 2050 cb->cb_numfailed++; 2051 return (0); 2052 } 2053 2054 /* upgrade */ 2055 if (version < cb->cb_version) { 2056 char verstr[16]; 2057 (void) snprintf(verstr, sizeof (verstr), 2058 "%llu", cb->cb_version); 2059 if (cb->cb_lastfs[0] && !same_pool(zhp, cb->cb_lastfs)) { 2060 /* 2061 * If they did "zfs upgrade -a", then we could 2062 * be doing ioctls to different pools. We need 2063 * to log this history once to each pool, and bypass 2064 * the normal history logging that happens in main(). 2065 */ 2066 (void) zpool_log_history(g_zfs, history_str); 2067 log_history = B_FALSE; 2068 } 2069 if (zfs_prop_set(zhp, "version", verstr) == 0) 2070 cb->cb_numupgraded++; 2071 else 2072 cb->cb_numfailed++; 2073 (void) strcpy(cb->cb_lastfs, zfs_get_name(zhp)); 2074 } else if (version > cb->cb_version) { 2075 /* can't downgrade */ 2076 (void) printf(gettext("%s: can not be downgraded; " 2077 "it is already at version %u\n"), 2078 zfs_get_name(zhp), version); 2079 cb->cb_numfailed++; 2080 } else { 2081 cb->cb_numsamegraded++; 2082 } 2083 return (0); 2084 } 2085 2086 /* 2087 * zfs upgrade 2088 * zfs upgrade -v 2089 * zfs upgrade [-r] [-V <version>] <-a | filesystem> 2090 */ 2091 static int 2092 zfs_do_upgrade(int argc, char **argv) 2093 { 2094 boolean_t all = B_FALSE; 2095 boolean_t showversions = B_FALSE; 2096 int ret = 0; 2097 upgrade_cbdata_t cb = { 0 }; 2098 char c; 2099 int flags = ZFS_ITER_ARGS_CAN_BE_PATHS; 2100 2101 /* check options */ 2102 while ((c = getopt(argc, argv, "rvV:a")) != -1) { 2103 switch (c) { 2104 case 'r': 2105 flags |= ZFS_ITER_RECURSE; 2106 break; 2107 case 'v': 2108 showversions = B_TRUE; 2109 break; 2110 case 'V': 2111 if (zfs_prop_string_to_index(ZFS_PROP_VERSION, 2112 optarg, &cb.cb_version) != 0) { 2113 (void) fprintf(stderr, 2114 gettext("invalid version %s\n"), optarg); 2115 usage(B_FALSE); 2116 } 2117 break; 2118 case 'a': 2119 all = B_TRUE; 2120 break; 2121 case '?': 2122 default: 2123 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2124 optopt); 2125 usage(B_FALSE); 2126 } 2127 } 2128 2129 argc -= optind; 2130 argv += optind; 2131 2132 if ((!all && !argc) && ((flags & ZFS_ITER_RECURSE) | cb.cb_version)) 2133 usage(B_FALSE); 2134 if (showversions && (flags & ZFS_ITER_RECURSE || all || 2135 cb.cb_version || argc)) 2136 usage(B_FALSE); 2137 if ((all || argc) && (showversions)) 2138 usage(B_FALSE); 2139 if (all && argc) 2140 usage(B_FALSE); 2141 2142 if (showversions) { 2143 /* Show info on available versions. */ 2144 (void) printf(gettext("The following filesystem versions are " 2145 "supported:\n\n")); 2146 (void) printf(gettext("VER DESCRIPTION\n")); 2147 (void) printf("--- -----------------------------------------" 2148 "---------------\n"); 2149 (void) printf(gettext(" 1 Initial ZFS filesystem version\n")); 2150 (void) printf(gettext(" 2 Enhanced directory entries\n")); 2151 (void) printf(gettext(" 3 Case insensitive and filesystem " 2152 "user identifier (FUID)\n")); 2153 (void) printf(gettext(" 4 userquota, groupquota " 2154 "properties\n")); 2155 (void) printf(gettext(" 5 System attributes\n")); 2156 (void) printf(gettext("\nFor more information on a particular " 2157 "version, including supported releases,\n")); 2158 (void) printf("see the ZFS Administration Guide.\n\n"); 2159 ret = 0; 2160 } else if (argc || all) { 2161 /* Upgrade filesystems */ 2162 if (cb.cb_version == 0) 2163 cb.cb_version = ZPL_VERSION; 2164 ret = zfs_for_each(argc, argv, flags, ZFS_TYPE_FILESYSTEM, 2165 NULL, NULL, 0, upgrade_set_callback, &cb); 2166 (void) printf(gettext("%llu filesystems upgraded\n"), 2167 cb.cb_numupgraded); 2168 if (cb.cb_numsamegraded) { 2169 (void) printf(gettext("%llu filesystems already at " 2170 "this version\n"), 2171 cb.cb_numsamegraded); 2172 } 2173 if (cb.cb_numfailed != 0) 2174 ret = 1; 2175 } else { 2176 /* List old-version filesytems */ 2177 boolean_t found; 2178 (void) printf(gettext("This system is currently running " 2179 "ZFS filesystem version %llu.\n\n"), ZPL_VERSION); 2180 2181 flags |= ZFS_ITER_RECURSE; 2182 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2183 NULL, NULL, 0, upgrade_list_callback, &cb); 2184 2185 found = cb.cb_foundone; 2186 cb.cb_foundone = B_FALSE; 2187 cb.cb_newer = B_TRUE; 2188 2189 ret = zfs_for_each(0, NULL, flags, ZFS_TYPE_FILESYSTEM, 2190 NULL, NULL, 0, upgrade_list_callback, &cb); 2191 2192 if (!cb.cb_foundone && !found) { 2193 (void) printf(gettext("All filesystems are " 2194 "formatted with the current version.\n")); 2195 } 2196 } 2197 2198 return (ret); 2199 } 2200 2201 /* 2202 * zfs userspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2203 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2204 * zfs groupspace [-Hinp] [-o field[,...]] [-s field [-s field]...] 2205 * [-S field [-S field]...] [-t type[,...]] filesystem | snapshot 2206 * 2207 * -H Scripted mode; elide headers and separate columns by tabs. 2208 * -i Translate SID to POSIX ID. 2209 * -n Print numeric ID instead of user/group name. 2210 * -o Control which fields to display. 2211 * -p Use exact (parsable) numeric output. 2212 * -s Specify sort columns, descending order. 2213 * -S Specify sort columns, ascending order. 2214 * -t Control which object types to display. 2215 * 2216 * Displays space consumed by, and quotas on, each user in the specified 2217 * filesystem or snapshot. 2218 */ 2219 2220 /* us_field_types, us_field_hdr and us_field_names should be kept in sync */ 2221 enum us_field_types { 2222 USFIELD_TYPE, 2223 USFIELD_NAME, 2224 USFIELD_USED, 2225 USFIELD_QUOTA 2226 }; 2227 static char *us_field_hdr[] = { "TYPE", "NAME", "USED", "QUOTA" }; 2228 static char *us_field_names[] = { "type", "name", "used", "quota" }; 2229 #define USFIELD_LAST (sizeof (us_field_names) / sizeof (char *)) 2230 2231 #define USTYPE_PSX_GRP (1 << 0) 2232 #define USTYPE_PSX_USR (1 << 1) 2233 #define USTYPE_SMB_GRP (1 << 2) 2234 #define USTYPE_SMB_USR (1 << 3) 2235 #define USTYPE_ALL \ 2236 (USTYPE_PSX_GRP | USTYPE_PSX_USR | USTYPE_SMB_GRP | USTYPE_SMB_USR) 2237 2238 static int us_type_bits[] = { 2239 USTYPE_PSX_GRP, 2240 USTYPE_PSX_USR, 2241 USTYPE_SMB_GRP, 2242 USTYPE_SMB_USR, 2243 USTYPE_ALL 2244 }; 2245 static char *us_type_names[] = { "posixgroup", "posixuser", "smbgroup", 2246 "smbuser", "all" }; 2247 2248 typedef struct us_node { 2249 nvlist_t *usn_nvl; 2250 uu_avl_node_t usn_avlnode; 2251 uu_list_node_t usn_listnode; 2252 } us_node_t; 2253 2254 typedef struct us_cbdata { 2255 nvlist_t **cb_nvlp; 2256 uu_avl_pool_t *cb_avl_pool; 2257 uu_avl_t *cb_avl; 2258 boolean_t cb_numname; 2259 boolean_t cb_nicenum; 2260 boolean_t cb_sid2posix; 2261 zfs_userquota_prop_t cb_prop; 2262 zfs_sort_column_t *cb_sortcol; 2263 size_t cb_width[USFIELD_LAST]; 2264 } us_cbdata_t; 2265 2266 static boolean_t us_populated = B_FALSE; 2267 2268 typedef struct { 2269 zfs_sort_column_t *si_sortcol; 2270 boolean_t si_numname; 2271 } us_sort_info_t; 2272 2273 static int 2274 us_field_index(char *field) 2275 { 2276 int i; 2277 2278 for (i = 0; i < USFIELD_LAST; i++) { 2279 if (strcmp(field, us_field_names[i]) == 0) 2280 return (i); 2281 } 2282 2283 return (-1); 2284 } 2285 2286 static int 2287 us_compare(const void *larg, const void *rarg, void *unused) 2288 { 2289 const us_node_t *l = larg; 2290 const us_node_t *r = rarg; 2291 us_sort_info_t *si = (us_sort_info_t *)unused; 2292 zfs_sort_column_t *sortcol = si->si_sortcol; 2293 boolean_t numname = si->si_numname; 2294 nvlist_t *lnvl = l->usn_nvl; 2295 nvlist_t *rnvl = r->usn_nvl; 2296 int rc = 0; 2297 boolean_t lvb, rvb; 2298 2299 for (; sortcol != NULL; sortcol = sortcol->sc_next) { 2300 char *lvstr = ""; 2301 char *rvstr = ""; 2302 uint32_t lv32 = 0; 2303 uint32_t rv32 = 0; 2304 uint64_t lv64 = 0; 2305 uint64_t rv64 = 0; 2306 zfs_prop_t prop = sortcol->sc_prop; 2307 const char *propname = NULL; 2308 boolean_t reverse = sortcol->sc_reverse; 2309 2310 switch (prop) { 2311 case ZFS_PROP_TYPE: 2312 propname = "type"; 2313 (void) nvlist_lookup_uint32(lnvl, propname, &lv32); 2314 (void) nvlist_lookup_uint32(rnvl, propname, &rv32); 2315 if (rv32 != lv32) 2316 rc = (rv32 < lv32) ? 1 : -1; 2317 break; 2318 case ZFS_PROP_NAME: 2319 propname = "name"; 2320 if (numname) { 2321 (void) nvlist_lookup_uint64(lnvl, propname, 2322 &lv64); 2323 (void) nvlist_lookup_uint64(rnvl, propname, 2324 &rv64); 2325 if (rv64 != lv64) 2326 rc = (rv64 < lv64) ? 1 : -1; 2327 } else { 2328 (void) nvlist_lookup_string(lnvl, propname, 2329 &lvstr); 2330 (void) nvlist_lookup_string(rnvl, propname, 2331 &rvstr); 2332 rc = strcmp(lvstr, rvstr); 2333 } 2334 break; 2335 case ZFS_PROP_USED: 2336 case ZFS_PROP_QUOTA: 2337 if (!us_populated) 2338 break; 2339 if (prop == ZFS_PROP_USED) 2340 propname = "used"; 2341 else 2342 propname = "quota"; 2343 (void) nvlist_lookup_uint64(lnvl, propname, &lv64); 2344 (void) nvlist_lookup_uint64(rnvl, propname, &rv64); 2345 if (rv64 != lv64) 2346 rc = (rv64 < lv64) ? 1 : -1; 2347 break; 2348 2349 default: 2350 break; 2351 } 2352 2353 if (rc != 0) { 2354 if (rc < 0) 2355 return (reverse ? 1 : -1); 2356 else 2357 return (reverse ? -1 : 1); 2358 } 2359 } 2360 2361 /* 2362 * If entries still seem to be the same, check if they are of the same 2363 * type (smbentity is added only if we are doing SID to POSIX ID 2364 * translation where we can have duplicate type/name combinations). 2365 */ 2366 if (nvlist_lookup_boolean_value(lnvl, "smbentity", &lvb) == 0 && 2367 nvlist_lookup_boolean_value(rnvl, "smbentity", &rvb) == 0 && 2368 lvb != rvb) 2369 return (lvb < rvb ? -1 : 1); 2370 2371 return (0); 2372 } 2373 2374 static inline const char * 2375 us_type2str(unsigned field_type) 2376 { 2377 switch (field_type) { 2378 case USTYPE_PSX_USR: 2379 return ("POSIX User"); 2380 case USTYPE_PSX_GRP: 2381 return ("POSIX Group"); 2382 case USTYPE_SMB_USR: 2383 return ("SMB User"); 2384 case USTYPE_SMB_GRP: 2385 return ("SMB Group"); 2386 default: 2387 return ("Undefined"); 2388 } 2389 } 2390 2391 static int 2392 userspace_cb(void *arg, const char *domain, uid_t rid, uint64_t space) 2393 { 2394 us_cbdata_t *cb = (us_cbdata_t *)arg; 2395 zfs_userquota_prop_t prop = cb->cb_prop; 2396 char *name = NULL; 2397 char *propname; 2398 char sizebuf[32]; 2399 us_node_t *node; 2400 uu_avl_pool_t *avl_pool = cb->cb_avl_pool; 2401 uu_avl_t *avl = cb->cb_avl; 2402 uu_avl_index_t idx; 2403 nvlist_t *props; 2404 us_node_t *n; 2405 zfs_sort_column_t *sortcol = cb->cb_sortcol; 2406 unsigned type = 0; 2407 const char *typestr; 2408 size_t namelen; 2409 size_t typelen; 2410 size_t sizelen; 2411 int typeidx, nameidx, sizeidx; 2412 us_sort_info_t sortinfo = { sortcol, cb->cb_numname }; 2413 boolean_t smbentity = B_FALSE; 2414 2415 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 2416 nomem(); 2417 node = safe_malloc(sizeof (us_node_t)); 2418 uu_avl_node_init(node, &node->usn_avlnode, avl_pool); 2419 node->usn_nvl = props; 2420 2421 if (domain != NULL && domain[0] != '\0') { 2422 /* SMB */ 2423 char sid[ZFS_MAXNAMELEN + 32]; 2424 uid_t id; 2425 int err; 2426 int flag = IDMAP_REQ_FLG_USE_CACHE; 2427 2428 smbentity = B_TRUE; 2429 2430 (void) snprintf(sid, sizeof (sid), "%s-%u", domain, rid); 2431 2432 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2433 type = USTYPE_SMB_GRP; 2434 err = sid_to_id(sid, B_FALSE, &id); 2435 } else { 2436 type = USTYPE_SMB_USR; 2437 err = sid_to_id(sid, B_TRUE, &id); 2438 } 2439 2440 if (err == 0) { 2441 rid = id; 2442 if (!cb->cb_sid2posix) { 2443 if (type == USTYPE_SMB_USR) { 2444 (void) idmap_getwinnamebyuid(rid, flag, 2445 &name, NULL); 2446 } else { 2447 (void) idmap_getwinnamebygid(rid, flag, 2448 &name, NULL); 2449 } 2450 if (name == NULL) 2451 name = sid; 2452 } 2453 } 2454 } 2455 2456 if (cb->cb_sid2posix || domain == NULL || domain[0] == '\0') { 2457 /* POSIX or -i */ 2458 if (prop == ZFS_PROP_GROUPUSED || prop == ZFS_PROP_GROUPQUOTA) { 2459 type = USTYPE_PSX_GRP; 2460 if (!cb->cb_numname) { 2461 struct group *g; 2462 2463 if ((g = getgrgid(rid)) != NULL) 2464 name = g->gr_name; 2465 } 2466 } else { 2467 type = USTYPE_PSX_USR; 2468 if (!cb->cb_numname) { 2469 struct passwd *p; 2470 2471 if ((p = getpwuid(rid)) != NULL) 2472 name = p->pw_name; 2473 } 2474 } 2475 } 2476 2477 /* 2478 * Make sure that the type/name combination is unique when doing 2479 * SID to POSIX ID translation (hence changing the type from SMB to 2480 * POSIX). 2481 */ 2482 if (cb->cb_sid2posix && 2483 nvlist_add_boolean_value(props, "smbentity", smbentity) != 0) 2484 nomem(); 2485 2486 /* Calculate/update width of TYPE field */ 2487 typestr = us_type2str(type); 2488 typelen = strlen(gettext(typestr)); 2489 typeidx = us_field_index("type"); 2490 if (typelen > cb->cb_width[typeidx]) 2491 cb->cb_width[typeidx] = typelen; 2492 if (nvlist_add_uint32(props, "type", type) != 0) 2493 nomem(); 2494 2495 /* Calculate/update width of NAME field */ 2496 if ((cb->cb_numname && cb->cb_sid2posix) || name == NULL) { 2497 if (nvlist_add_uint64(props, "name", rid) != 0) 2498 nomem(); 2499 namelen = snprintf(NULL, 0, "%u", rid); 2500 } else { 2501 if (nvlist_add_string(props, "name", name) != 0) 2502 nomem(); 2503 namelen = strlen(name); 2504 } 2505 nameidx = us_field_index("name"); 2506 if (namelen > cb->cb_width[nameidx]) 2507 cb->cb_width[nameidx] = namelen; 2508 2509 /* 2510 * Check if this type/name combination is in the list and update it; 2511 * otherwise add new node to the list. 2512 */ 2513 if ((n = uu_avl_find(avl, node, &sortinfo, &idx)) == NULL) { 2514 uu_avl_insert(avl, node, idx); 2515 } else { 2516 nvlist_free(props); 2517 free(node); 2518 node = n; 2519 props = node->usn_nvl; 2520 } 2521 2522 /* Calculate/update width of USED/QUOTA fields */ 2523 if (cb->cb_nicenum) 2524 zfs_nicenum(space, sizebuf, sizeof (sizebuf)); 2525 else 2526 (void) snprintf(sizebuf, sizeof (sizebuf), "%llu", space); 2527 sizelen = strlen(sizebuf); 2528 if (prop == ZFS_PROP_USERUSED || prop == ZFS_PROP_GROUPUSED) { 2529 propname = "used"; 2530 if (!nvlist_exists(props, "quota")) 2531 (void) nvlist_add_uint64(props, "quota", 0); 2532 } else { 2533 propname = "quota"; 2534 if (!nvlist_exists(props, "used")) 2535 (void) nvlist_add_uint64(props, "used", 0); 2536 } 2537 sizeidx = us_field_index(propname); 2538 if (sizelen > cb->cb_width[sizeidx]) 2539 cb->cb_width[sizeidx] = sizelen; 2540 2541 if (nvlist_add_uint64(props, propname, space) != 0) 2542 nomem(); 2543 2544 return (0); 2545 } 2546 2547 static void 2548 print_us_node(boolean_t scripted, boolean_t parsable, int *fields, int types, 2549 size_t *width, us_node_t *node) 2550 { 2551 nvlist_t *nvl = node->usn_nvl; 2552 char valstr[ZFS_MAXNAMELEN]; 2553 boolean_t first = B_TRUE; 2554 int cfield = 0; 2555 int field; 2556 uint32_t ustype; 2557 2558 /* Check type */ 2559 (void) nvlist_lookup_uint32(nvl, "type", &ustype); 2560 if (!(ustype & types)) 2561 return; 2562 2563 while ((field = fields[cfield]) != USFIELD_LAST) { 2564 nvpair_t *nvp = NULL; 2565 data_type_t type; 2566 uint32_t val32; 2567 uint64_t val64; 2568 char *strval = NULL; 2569 2570 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 2571 if (strcmp(nvpair_name(nvp), 2572 us_field_names[field]) == 0) 2573 break; 2574 } 2575 2576 type = nvpair_type(nvp); 2577 switch (type) { 2578 case DATA_TYPE_UINT32: 2579 (void) nvpair_value_uint32(nvp, &val32); 2580 break; 2581 case DATA_TYPE_UINT64: 2582 (void) nvpair_value_uint64(nvp, &val64); 2583 break; 2584 case DATA_TYPE_STRING: 2585 (void) nvpair_value_string(nvp, &strval); 2586 break; 2587 default: 2588 (void) fprintf(stderr, "invalid data type\n"); 2589 } 2590 2591 switch (field) { 2592 case USFIELD_TYPE: 2593 strval = (char *)us_type2str(val32); 2594 break; 2595 case USFIELD_NAME: 2596 if (type == DATA_TYPE_UINT64) { 2597 (void) sprintf(valstr, "%llu", val64); 2598 strval = valstr; 2599 } 2600 break; 2601 case USFIELD_USED: 2602 case USFIELD_QUOTA: 2603 if (type == DATA_TYPE_UINT64) { 2604 if (parsable) { 2605 (void) sprintf(valstr, "%llu", val64); 2606 } else { 2607 zfs_nicenum(val64, valstr, 2608 sizeof (valstr)); 2609 } 2610 if (field == USFIELD_QUOTA && 2611 strcmp(valstr, "0") == 0) 2612 strval = "none"; 2613 else 2614 strval = valstr; 2615 } 2616 break; 2617 } 2618 2619 if (!first) { 2620 if (scripted) 2621 (void) printf("\t"); 2622 else 2623 (void) printf(" "); 2624 } 2625 if (scripted) 2626 (void) printf("%s", strval); 2627 else if (field == USFIELD_TYPE || field == USFIELD_NAME) 2628 (void) printf("%-*s", width[field], strval); 2629 else 2630 (void) printf("%*s", width[field], strval); 2631 2632 first = B_FALSE; 2633 cfield++; 2634 } 2635 2636 (void) printf("\n"); 2637 } 2638 2639 static void 2640 print_us(boolean_t scripted, boolean_t parsable, int *fields, int types, 2641 size_t *width, boolean_t rmnode, uu_avl_t *avl) 2642 { 2643 us_node_t *node; 2644 const char *col; 2645 int cfield = 0; 2646 int field; 2647 2648 if (!scripted) { 2649 boolean_t first = B_TRUE; 2650 2651 while ((field = fields[cfield]) != USFIELD_LAST) { 2652 col = gettext(us_field_hdr[field]); 2653 if (field == USFIELD_TYPE || field == USFIELD_NAME) { 2654 (void) printf(first ? "%-*s" : " %-*s", 2655 width[field], col); 2656 } else { 2657 (void) printf(first ? "%*s" : " %*s", 2658 width[field], col); 2659 } 2660 first = B_FALSE; 2661 cfield++; 2662 } 2663 (void) printf("\n"); 2664 } 2665 2666 for (node = uu_avl_first(avl); node; node = uu_avl_next(avl, node)) { 2667 print_us_node(scripted, parsable, fields, types, width, node); 2668 if (rmnode) 2669 nvlist_free(node->usn_nvl); 2670 } 2671 } 2672 2673 static int 2674 zfs_do_userspace(int argc, char **argv) 2675 { 2676 zfs_handle_t *zhp; 2677 zfs_userquota_prop_t p; 2678 uu_avl_pool_t *avl_pool; 2679 uu_avl_t *avl_tree; 2680 uu_avl_walk_t *walk; 2681 char *delim; 2682 char deffields[] = "type,name,used,quota"; 2683 char *ofield = NULL; 2684 char *tfield = NULL; 2685 int cfield = 0; 2686 int fields[256]; 2687 int i; 2688 boolean_t scripted = B_FALSE; 2689 boolean_t prtnum = B_FALSE; 2690 boolean_t parsable = B_FALSE; 2691 boolean_t sid2posix = B_FALSE; 2692 int ret = 0; 2693 int c; 2694 zfs_sort_column_t *sortcol = NULL; 2695 int types = USTYPE_PSX_USR | USTYPE_SMB_USR; 2696 us_cbdata_t cb; 2697 us_node_t *node; 2698 us_node_t *rmnode; 2699 uu_list_pool_t *listpool; 2700 uu_list_t *list; 2701 uu_avl_index_t idx = 0; 2702 uu_list_index_t idx2 = 0; 2703 2704 if (argc < 2) 2705 usage(B_FALSE); 2706 2707 if (strcmp(argv[0], "groupspace") == 0) 2708 /* Toggle default group types */ 2709 types = USTYPE_PSX_GRP | USTYPE_SMB_GRP; 2710 2711 while ((c = getopt(argc, argv, "nHpo:s:S:t:i")) != -1) { 2712 switch (c) { 2713 case 'n': 2714 prtnum = B_TRUE; 2715 break; 2716 case 'H': 2717 scripted = B_TRUE; 2718 break; 2719 case 'p': 2720 parsable = B_TRUE; 2721 break; 2722 case 'o': 2723 ofield = optarg; 2724 break; 2725 case 's': 2726 case 'S': 2727 if (zfs_add_sort_column(&sortcol, optarg, 2728 c == 's' ? B_FALSE : B_TRUE) != 0) { 2729 (void) fprintf(stderr, 2730 gettext("invalid field '%s'\n"), optarg); 2731 usage(B_FALSE); 2732 } 2733 break; 2734 case 't': 2735 tfield = optarg; 2736 break; 2737 case 'i': 2738 sid2posix = B_TRUE; 2739 break; 2740 case ':': 2741 (void) fprintf(stderr, gettext("missing argument for " 2742 "'%c' option\n"), optopt); 2743 usage(B_FALSE); 2744 break; 2745 case '?': 2746 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 2747 optopt); 2748 usage(B_FALSE); 2749 } 2750 } 2751 2752 argc -= optind; 2753 argv += optind; 2754 2755 if (argc < 1) { 2756 (void) fprintf(stderr, gettext("missing dataset name\n")); 2757 usage(B_FALSE); 2758 } 2759 if (argc > 1) { 2760 (void) fprintf(stderr, gettext("too many arguments\n")); 2761 usage(B_FALSE); 2762 } 2763 2764 /* Use default output fields if not specified using -o */ 2765 if (ofield == NULL) 2766 ofield = deffields; 2767 do { 2768 if ((delim = strchr(ofield, ',')) != NULL) 2769 *delim = '\0'; 2770 if ((fields[cfield++] = us_field_index(ofield)) == -1) { 2771 (void) fprintf(stderr, gettext("invalid type '%s' " 2772 "for -o option\n"), ofield); 2773 return (-1); 2774 } 2775 if (delim != NULL) 2776 ofield = delim + 1; 2777 } while (delim != NULL); 2778 fields[cfield] = USFIELD_LAST; 2779 2780 /* Override output types (-t option) */ 2781 if (tfield != NULL) { 2782 types = 0; 2783 2784 do { 2785 boolean_t found = B_FALSE; 2786 2787 if ((delim = strchr(tfield, ',')) != NULL) 2788 *delim = '\0'; 2789 for (i = 0; i < sizeof (us_type_bits) / sizeof (int); 2790 i++) { 2791 if (strcmp(tfield, us_type_names[i]) == 0) { 2792 found = B_TRUE; 2793 types |= us_type_bits[i]; 2794 break; 2795 } 2796 } 2797 if (!found) { 2798 (void) fprintf(stderr, gettext("invalid type " 2799 "'%s' for -t option\n"), tfield); 2800 return (-1); 2801 } 2802 if (delim != NULL) 2803 tfield = delim + 1; 2804 } while (delim != NULL); 2805 } 2806 2807 if ((zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET)) == NULL) 2808 return (1); 2809 2810 if ((avl_pool = uu_avl_pool_create("us_avl_pool", sizeof (us_node_t), 2811 offsetof(us_node_t, usn_avlnode), us_compare, UU_DEFAULT)) == NULL) 2812 nomem(); 2813 if ((avl_tree = uu_avl_create(avl_pool, NULL, UU_DEFAULT)) == NULL) 2814 nomem(); 2815 2816 /* Always add default sorting columns */ 2817 (void) zfs_add_sort_column(&sortcol, "type", B_FALSE); 2818 (void) zfs_add_sort_column(&sortcol, "name", B_FALSE); 2819 2820 cb.cb_sortcol = sortcol; 2821 cb.cb_numname = prtnum; 2822 cb.cb_nicenum = !parsable; 2823 cb.cb_avl_pool = avl_pool; 2824 cb.cb_avl = avl_tree; 2825 cb.cb_sid2posix = sid2posix; 2826 2827 for (i = 0; i < USFIELD_LAST; i++) 2828 cb.cb_width[i] = strlen(gettext(us_field_hdr[i])); 2829 2830 for (p = 0; p < ZFS_NUM_USERQUOTA_PROPS; p++) { 2831 if (((p == ZFS_PROP_USERUSED || p == ZFS_PROP_USERQUOTA) && 2832 !(types & (USTYPE_PSX_USR | USTYPE_SMB_USR))) || 2833 ((p == ZFS_PROP_GROUPUSED || p == ZFS_PROP_GROUPQUOTA) && 2834 !(types & (USTYPE_PSX_GRP | USTYPE_SMB_GRP)))) 2835 continue; 2836 cb.cb_prop = p; 2837 if ((ret = zfs_userspace(zhp, p, userspace_cb, &cb)) != 0) 2838 return (ret); 2839 } 2840 2841 /* Sort the list */ 2842 if ((node = uu_avl_first(avl_tree)) == NULL) 2843 return (0); 2844 2845 us_populated = B_TRUE; 2846 2847 listpool = uu_list_pool_create("tmplist", sizeof (us_node_t), 2848 offsetof(us_node_t, usn_listnode), NULL, UU_DEFAULT); 2849 list = uu_list_create(listpool, NULL, UU_DEFAULT); 2850 uu_list_node_init(node, &node->usn_listnode, listpool); 2851 2852 while (node != NULL) { 2853 rmnode = node; 2854 node = uu_avl_next(avl_tree, node); 2855 uu_avl_remove(avl_tree, rmnode); 2856 if (uu_list_find(list, rmnode, NULL, &idx2) == NULL) 2857 uu_list_insert(list, rmnode, idx2); 2858 } 2859 2860 for (node = uu_list_first(list); node != NULL; 2861 node = uu_list_next(list, node)) { 2862 us_sort_info_t sortinfo = { sortcol, cb.cb_numname }; 2863 2864 if (uu_avl_find(avl_tree, node, &sortinfo, &idx) == NULL) 2865 uu_avl_insert(avl_tree, node, idx); 2866 } 2867 2868 uu_list_destroy(list); 2869 uu_list_pool_destroy(listpool); 2870 2871 /* Print and free node nvlist memory */ 2872 print_us(scripted, parsable, fields, types, cb.cb_width, B_TRUE, 2873 cb.cb_avl); 2874 2875 zfs_free_sort_columns(sortcol); 2876 2877 /* Clean up the AVL tree */ 2878 if ((walk = uu_avl_walk_start(cb.cb_avl, UU_WALK_ROBUST)) == NULL) 2879 nomem(); 2880 2881 while ((node = uu_avl_walk_next(walk)) != NULL) { 2882 uu_avl_remove(cb.cb_avl, node); 2883 free(node); 2884 } 2885 2886 uu_avl_walk_end(walk); 2887 uu_avl_destroy(avl_tree); 2888 uu_avl_pool_destroy(avl_pool); 2889 2890 return (ret); 2891 } 2892 2893 /* 2894 * list [-Hp][-r|-d max] [-o property[,...]] [-s property] ... [-S property] ... 2895 * [-t type[,...]] [filesystem|volume|snapshot] ... 2896 * 2897 * -H Scripted mode; elide headers and separate columns by tabs. 2898 * -p Display values in parsable (literal) format. 2899 * -r Recurse over all children. 2900 * -d Limit recursion by depth. 2901 * -o Control which fields to display. 2902 * -s Specify sort columns, descending order. 2903 * -S Specify sort columns, ascending order. 2904 * -t Control which object types to display. 2905 * 2906 * When given no arguments, list all filesystems in the system. 2907 * Otherwise, list the specified datasets, optionally recursing down them if 2908 * '-r' is specified. 2909 */ 2910 typedef struct list_cbdata { 2911 boolean_t cb_first; 2912 boolean_t cb_literal; 2913 boolean_t cb_scripted; 2914 zprop_list_t *cb_proplist; 2915 } list_cbdata_t; 2916 2917 /* 2918 * Given a list of columns to display, output appropriate headers for each one. 2919 */ 2920 static void 2921 print_header(list_cbdata_t *cb) 2922 { 2923 zprop_list_t *pl = cb->cb_proplist; 2924 char headerbuf[ZFS_MAXPROPLEN]; 2925 const char *header; 2926 int i; 2927 boolean_t first = B_TRUE; 2928 boolean_t right_justify; 2929 2930 for (; pl != NULL; pl = pl->pl_next) { 2931 if (!first) { 2932 (void) printf(" "); 2933 } else { 2934 first = B_FALSE; 2935 } 2936 2937 right_justify = B_FALSE; 2938 if (pl->pl_prop != ZPROP_INVAL) { 2939 header = zfs_prop_column_name(pl->pl_prop); 2940 right_justify = zfs_prop_align_right(pl->pl_prop); 2941 } else { 2942 for (i = 0; pl->pl_user_prop[i] != '\0'; i++) 2943 headerbuf[i] = toupper(pl->pl_user_prop[i]); 2944 headerbuf[i] = '\0'; 2945 header = headerbuf; 2946 } 2947 2948 if (pl->pl_next == NULL && !right_justify) 2949 (void) printf("%s", header); 2950 else if (right_justify) 2951 (void) printf("%*s", pl->pl_width, header); 2952 else 2953 (void) printf("%-*s", pl->pl_width, header); 2954 } 2955 2956 (void) printf("\n"); 2957 } 2958 2959 /* 2960 * Given a dataset and a list of fields, print out all the properties according 2961 * to the described layout. 2962 */ 2963 static void 2964 print_dataset(zfs_handle_t *zhp, list_cbdata_t *cb) 2965 { 2966 zprop_list_t *pl = cb->cb_proplist; 2967 boolean_t first = B_TRUE; 2968 char property[ZFS_MAXPROPLEN]; 2969 nvlist_t *userprops = zfs_get_user_props(zhp); 2970 nvlist_t *propval; 2971 char *propstr; 2972 boolean_t right_justify; 2973 2974 for (; pl != NULL; pl = pl->pl_next) { 2975 if (!first) { 2976 if (cb->cb_scripted) 2977 (void) printf("\t"); 2978 else 2979 (void) printf(" "); 2980 } else { 2981 first = B_FALSE; 2982 } 2983 2984 if (pl->pl_prop != ZPROP_INVAL) { 2985 if (zfs_prop_get(zhp, pl->pl_prop, property, 2986 sizeof (property), NULL, NULL, 0, 2987 cb->cb_literal) != 0) 2988 propstr = "-"; 2989 else 2990 propstr = property; 2991 right_justify = zfs_prop_align_right(pl->pl_prop); 2992 } else if (zfs_prop_userquota(pl->pl_user_prop)) { 2993 if (zfs_prop_get_userquota(zhp, pl->pl_user_prop, 2994 property, sizeof (property), cb->cb_literal) != 0) 2995 propstr = "-"; 2996 else 2997 propstr = property; 2998 right_justify = B_TRUE; 2999 } else if (zfs_prop_written(pl->pl_user_prop)) { 3000 if (zfs_prop_get_written(zhp, pl->pl_user_prop, 3001 property, sizeof (property), cb->cb_literal) != 0) 3002 propstr = "-"; 3003 else 3004 propstr = property; 3005 right_justify = B_TRUE; 3006 } else { 3007 if (nvlist_lookup_nvlist(userprops, 3008 pl->pl_user_prop, &propval) != 0) 3009 propstr = "-"; 3010 else 3011 verify(nvlist_lookup_string(propval, 3012 ZPROP_VALUE, &propstr) == 0); 3013 right_justify = B_FALSE; 3014 } 3015 3016 /* 3017 * If this is being called in scripted mode, or if this is the 3018 * last column and it is left-justified, don't include a width 3019 * format specifier. 3020 */ 3021 if (cb->cb_scripted || (pl->pl_next == NULL && !right_justify)) 3022 (void) printf("%s", propstr); 3023 else if (right_justify) 3024 (void) printf("%*s", pl->pl_width, propstr); 3025 else 3026 (void) printf("%-*s", pl->pl_width, propstr); 3027 } 3028 3029 (void) printf("\n"); 3030 } 3031 3032 /* 3033 * Generic callback function to list a dataset or snapshot. 3034 */ 3035 static int 3036 list_callback(zfs_handle_t *zhp, void *data) 3037 { 3038 list_cbdata_t *cbp = data; 3039 3040 if (cbp->cb_first) { 3041 if (!cbp->cb_scripted) 3042 print_header(cbp); 3043 cbp->cb_first = B_FALSE; 3044 } 3045 3046 print_dataset(zhp, cbp); 3047 3048 return (0); 3049 } 3050 3051 static int 3052 zfs_do_list(int argc, char **argv) 3053 { 3054 int c; 3055 static char default_fields[] = 3056 "name,used,available,referenced,mountpoint"; 3057 int types = ZFS_TYPE_DATASET; 3058 boolean_t types_specified = B_FALSE; 3059 char *fields = NULL; 3060 list_cbdata_t cb = { 0 }; 3061 char *value; 3062 int limit = 0; 3063 int ret = 0; 3064 zfs_sort_column_t *sortcol = NULL; 3065 int flags = ZFS_ITER_PROP_LISTSNAPS | ZFS_ITER_ARGS_CAN_BE_PATHS; 3066 3067 /* check options */ 3068 while ((c = getopt(argc, argv, "HS:d:o:prs:t:")) != -1) { 3069 switch (c) { 3070 case 'o': 3071 fields = optarg; 3072 break; 3073 case 'p': 3074 cb.cb_literal = B_TRUE; 3075 flags |= ZFS_ITER_LITERAL_PROPS; 3076 break; 3077 case 'd': 3078 limit = parse_depth(optarg, &flags); 3079 break; 3080 case 'r': 3081 flags |= ZFS_ITER_RECURSE; 3082 break; 3083 case 'H': 3084 cb.cb_scripted = B_TRUE; 3085 break; 3086 case 's': 3087 if (zfs_add_sort_column(&sortcol, optarg, 3088 B_FALSE) != 0) { 3089 (void) fprintf(stderr, 3090 gettext("invalid property '%s'\n"), optarg); 3091 usage(B_FALSE); 3092 } 3093 break; 3094 case 'S': 3095 if (zfs_add_sort_column(&sortcol, optarg, 3096 B_TRUE) != 0) { 3097 (void) fprintf(stderr, 3098 gettext("invalid property '%s'\n"), optarg); 3099 usage(B_FALSE); 3100 } 3101 break; 3102 case 't': 3103 types = 0; 3104 types_specified = B_TRUE; 3105 flags &= ~ZFS_ITER_PROP_LISTSNAPS; 3106 while (*optarg != '\0') { 3107 static char *type_subopts[] = { "filesystem", 3108 "volume", "snapshot", "snap", "bookmark", 3109 "all", NULL }; 3110 3111 switch (getsubopt(&optarg, type_subopts, 3112 &value)) { 3113 case 0: 3114 types |= ZFS_TYPE_FILESYSTEM; 3115 break; 3116 case 1: 3117 types |= ZFS_TYPE_VOLUME; 3118 break; 3119 case 2: 3120 case 3: 3121 types |= ZFS_TYPE_SNAPSHOT; 3122 break; 3123 case 4: 3124 types |= ZFS_TYPE_BOOKMARK; 3125 break; 3126 case 5: 3127 types = ZFS_TYPE_DATASET | 3128 ZFS_TYPE_BOOKMARK; 3129 break; 3130 default: 3131 (void) fprintf(stderr, 3132 gettext("invalid type '%s'\n"), 3133 value); 3134 usage(B_FALSE); 3135 } 3136 } 3137 break; 3138 case ':': 3139 (void) fprintf(stderr, gettext("missing argument for " 3140 "'%c' option\n"), optopt); 3141 usage(B_FALSE); 3142 break; 3143 case '?': 3144 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3145 optopt); 3146 usage(B_FALSE); 3147 } 3148 } 3149 3150 argc -= optind; 3151 argv += optind; 3152 3153 if (fields == NULL) 3154 fields = default_fields; 3155 3156 /* 3157 * If "-o space" and no types were specified, don't display snapshots. 3158 */ 3159 if (strcmp(fields, "space") == 0 && types_specified == B_FALSE) 3160 types &= ~ZFS_TYPE_SNAPSHOT; 3161 3162 /* 3163 * If the user specifies '-o all', the zprop_get_list() doesn't 3164 * normally include the name of the dataset. For 'zfs list', we always 3165 * want this property to be first. 3166 */ 3167 if (zprop_get_list(g_zfs, fields, &cb.cb_proplist, ZFS_TYPE_DATASET) 3168 != 0) 3169 usage(B_FALSE); 3170 3171 cb.cb_first = B_TRUE; 3172 3173 ret = zfs_for_each(argc, argv, flags, types, sortcol, &cb.cb_proplist, 3174 limit, list_callback, &cb); 3175 3176 zprop_free_list(cb.cb_proplist); 3177 zfs_free_sort_columns(sortcol); 3178 3179 if (ret == 0 && cb.cb_first && !cb.cb_scripted) 3180 (void) printf(gettext("no datasets available\n")); 3181 3182 return (ret); 3183 } 3184 3185 /* 3186 * zfs rename [-f] <fs | snap | vol> <fs | snap | vol> 3187 * zfs rename [-f] -p <fs | vol> <fs | vol> 3188 * zfs rename -r <snap> <snap> 3189 * 3190 * Renames the given dataset to another of the same type. 3191 * 3192 * The '-p' flag creates all the non-existing ancestors of the target first. 3193 */ 3194 /* ARGSUSED */ 3195 static int 3196 zfs_do_rename(int argc, char **argv) 3197 { 3198 zfs_handle_t *zhp; 3199 int c; 3200 int ret = 0; 3201 boolean_t recurse = B_FALSE; 3202 boolean_t parents = B_FALSE; 3203 boolean_t force_unmount = B_FALSE; 3204 3205 /* check options */ 3206 while ((c = getopt(argc, argv, "prf")) != -1) { 3207 switch (c) { 3208 case 'p': 3209 parents = B_TRUE; 3210 break; 3211 case 'r': 3212 recurse = B_TRUE; 3213 break; 3214 case 'f': 3215 force_unmount = B_TRUE; 3216 break; 3217 case '?': 3218 default: 3219 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3220 optopt); 3221 usage(B_FALSE); 3222 } 3223 } 3224 3225 argc -= optind; 3226 argv += optind; 3227 3228 /* check number of arguments */ 3229 if (argc < 1) { 3230 (void) fprintf(stderr, gettext("missing source dataset " 3231 "argument\n")); 3232 usage(B_FALSE); 3233 } 3234 if (argc < 2) { 3235 (void) fprintf(stderr, gettext("missing target dataset " 3236 "argument\n")); 3237 usage(B_FALSE); 3238 } 3239 if (argc > 2) { 3240 (void) fprintf(stderr, gettext("too many arguments\n")); 3241 usage(B_FALSE); 3242 } 3243 3244 if (recurse && parents) { 3245 (void) fprintf(stderr, gettext("-p and -r options are mutually " 3246 "exclusive\n")); 3247 usage(B_FALSE); 3248 } 3249 3250 if (recurse && strchr(argv[0], '@') == 0) { 3251 (void) fprintf(stderr, gettext("source dataset for recursive " 3252 "rename must be a snapshot\n")); 3253 usage(B_FALSE); 3254 } 3255 3256 if ((zhp = zfs_open(g_zfs, argv[0], parents ? ZFS_TYPE_FILESYSTEM | 3257 ZFS_TYPE_VOLUME : ZFS_TYPE_DATASET)) == NULL) 3258 return (1); 3259 3260 /* If we were asked and the name looks good, try to create ancestors. */ 3261 if (parents && zfs_name_valid(argv[1], zfs_get_type(zhp)) && 3262 zfs_create_ancestors(g_zfs, argv[1]) != 0) { 3263 zfs_close(zhp); 3264 return (1); 3265 } 3266 3267 ret = (zfs_rename(zhp, argv[1], recurse, force_unmount) != 0); 3268 3269 zfs_close(zhp); 3270 return (ret); 3271 } 3272 3273 /* 3274 * zfs promote <fs> 3275 * 3276 * Promotes the given clone fs to be the parent 3277 */ 3278 /* ARGSUSED */ 3279 static int 3280 zfs_do_promote(int argc, char **argv) 3281 { 3282 zfs_handle_t *zhp; 3283 int ret = 0; 3284 3285 /* check options */ 3286 if (argc > 1 && argv[1][0] == '-') { 3287 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3288 argv[1][1]); 3289 usage(B_FALSE); 3290 } 3291 3292 /* check number of arguments */ 3293 if (argc < 2) { 3294 (void) fprintf(stderr, gettext("missing clone filesystem" 3295 " argument\n")); 3296 usage(B_FALSE); 3297 } 3298 if (argc > 2) { 3299 (void) fprintf(stderr, gettext("too many arguments\n")); 3300 usage(B_FALSE); 3301 } 3302 3303 zhp = zfs_open(g_zfs, argv[1], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3304 if (zhp == NULL) 3305 return (1); 3306 3307 ret = (zfs_promote(zhp) != 0); 3308 3309 3310 zfs_close(zhp); 3311 return (ret); 3312 } 3313 3314 /* 3315 * zfs rollback [-rRf] <snapshot> 3316 * 3317 * -r Delete any intervening snapshots before doing rollback 3318 * -R Delete any snapshots and their clones 3319 * -f ignored for backwards compatability 3320 * 3321 * Given a filesystem, rollback to a specific snapshot, discarding any changes 3322 * since then and making it the active dataset. If more recent snapshots exist, 3323 * the command will complain unless the '-r' flag is given. 3324 */ 3325 typedef struct rollback_cbdata { 3326 uint64_t cb_create; 3327 boolean_t cb_first; 3328 int cb_doclones; 3329 char *cb_target; 3330 int cb_error; 3331 boolean_t cb_recurse; 3332 } rollback_cbdata_t; 3333 3334 static int 3335 rollback_check_dependent(zfs_handle_t *zhp, void *data) 3336 { 3337 rollback_cbdata_t *cbp = data; 3338 3339 if (cbp->cb_first && cbp->cb_recurse) { 3340 (void) fprintf(stderr, gettext("cannot rollback to " 3341 "'%s': clones of previous snapshots exist\n"), 3342 cbp->cb_target); 3343 (void) fprintf(stderr, gettext("use '-R' to " 3344 "force deletion of the following clones and " 3345 "dependents:\n")); 3346 cbp->cb_first = 0; 3347 cbp->cb_error = 1; 3348 } 3349 3350 (void) fprintf(stderr, "%s\n", zfs_get_name(zhp)); 3351 3352 zfs_close(zhp); 3353 return (0); 3354 } 3355 3356 /* 3357 * Report any snapshots more recent than the one specified. Used when '-r' is 3358 * not specified. We reuse this same callback for the snapshot dependents - if 3359 * 'cb_dependent' is set, then this is a dependent and we should report it 3360 * without checking the transaction group. 3361 */ 3362 static int 3363 rollback_check(zfs_handle_t *zhp, void *data) 3364 { 3365 rollback_cbdata_t *cbp = data; 3366 3367 if (cbp->cb_doclones) { 3368 zfs_close(zhp); 3369 return (0); 3370 } 3371 3372 if (zfs_prop_get_int(zhp, ZFS_PROP_CREATETXG) > cbp->cb_create) { 3373 if (cbp->cb_first && !cbp->cb_recurse) { 3374 (void) fprintf(stderr, gettext("cannot " 3375 "rollback to '%s': more recent snapshots " 3376 "or bookmarks exist\n"), 3377 cbp->cb_target); 3378 (void) fprintf(stderr, gettext("use '-r' to " 3379 "force deletion of the following " 3380 "snapshots and bookmarks:\n")); 3381 cbp->cb_first = 0; 3382 cbp->cb_error = 1; 3383 } 3384 3385 if (cbp->cb_recurse) { 3386 if (zfs_iter_dependents(zhp, B_TRUE, 3387 rollback_check_dependent, cbp) != 0) { 3388 zfs_close(zhp); 3389 return (-1); 3390 } 3391 } else { 3392 (void) fprintf(stderr, "%s\n", 3393 zfs_get_name(zhp)); 3394 } 3395 } 3396 zfs_close(zhp); 3397 return (0); 3398 } 3399 3400 static int 3401 zfs_do_rollback(int argc, char **argv) 3402 { 3403 int ret = 0; 3404 int c; 3405 boolean_t force = B_FALSE; 3406 rollback_cbdata_t cb = { 0 }; 3407 zfs_handle_t *zhp, *snap; 3408 char parentname[ZFS_MAXNAMELEN]; 3409 char *delim; 3410 3411 /* check options */ 3412 while ((c = getopt(argc, argv, "rRf")) != -1) { 3413 switch (c) { 3414 case 'r': 3415 cb.cb_recurse = 1; 3416 break; 3417 case 'R': 3418 cb.cb_recurse = 1; 3419 cb.cb_doclones = 1; 3420 break; 3421 case 'f': 3422 force = B_TRUE; 3423 break; 3424 case '?': 3425 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3426 optopt); 3427 usage(B_FALSE); 3428 } 3429 } 3430 3431 argc -= optind; 3432 argv += optind; 3433 3434 /* check number of arguments */ 3435 if (argc < 1) { 3436 (void) fprintf(stderr, gettext("missing dataset argument\n")); 3437 usage(B_FALSE); 3438 } 3439 if (argc > 1) { 3440 (void) fprintf(stderr, gettext("too many arguments\n")); 3441 usage(B_FALSE); 3442 } 3443 3444 /* open the snapshot */ 3445 if ((snap = zfs_open(g_zfs, argv[0], ZFS_TYPE_SNAPSHOT)) == NULL) 3446 return (1); 3447 3448 /* open the parent dataset */ 3449 (void) strlcpy(parentname, argv[0], sizeof (parentname)); 3450 verify((delim = strrchr(parentname, '@')) != NULL); 3451 *delim = '\0'; 3452 if ((zhp = zfs_open(g_zfs, parentname, ZFS_TYPE_DATASET)) == NULL) { 3453 zfs_close(snap); 3454 return (1); 3455 } 3456 3457 /* 3458 * Check for more recent snapshots and/or clones based on the presence 3459 * of '-r' and '-R'. 3460 */ 3461 cb.cb_target = argv[0]; 3462 cb.cb_create = zfs_prop_get_int(snap, ZFS_PROP_CREATETXG); 3463 cb.cb_first = B_TRUE; 3464 cb.cb_error = 0; 3465 if ((ret = zfs_iter_snapshots(zhp, rollback_check, &cb)) != 0) 3466 goto out; 3467 if ((ret = zfs_iter_bookmarks(zhp, rollback_check, &cb)) != 0) 3468 goto out; 3469 3470 if ((ret = cb.cb_error) != 0) 3471 goto out; 3472 3473 /* 3474 * Rollback parent to the given snapshot. 3475 */ 3476 ret = zfs_rollback(zhp, snap, force); 3477 3478 out: 3479 zfs_close(snap); 3480 zfs_close(zhp); 3481 3482 if (ret == 0) 3483 return (0); 3484 else 3485 return (1); 3486 } 3487 3488 /* 3489 * zfs set property=value ... { fs | snap | vol } ... 3490 * 3491 * Sets the given properties for all datasets specified on the command line. 3492 */ 3493 3494 static int 3495 set_callback(zfs_handle_t *zhp, void *data) 3496 { 3497 nvlist_t *props = data; 3498 3499 if (zfs_prop_set_list(zhp, props) != 0) { 3500 switch (libzfs_errno(g_zfs)) { 3501 case EZFS_MOUNTFAILED: 3502 (void) fprintf(stderr, gettext("property may be set " 3503 "but unable to remount filesystem\n")); 3504 break; 3505 case EZFS_SHARENFSFAILED: 3506 (void) fprintf(stderr, gettext("property may be set " 3507 "but unable to reshare filesystem\n")); 3508 break; 3509 } 3510 return (1); 3511 } 3512 return (0); 3513 } 3514 3515 static int 3516 zfs_do_set(int argc, char **argv) 3517 { 3518 nvlist_t *props = NULL; 3519 int ds_start = -1; /* argv idx of first dataset arg */ 3520 int ret = 0; 3521 3522 /* check for options */ 3523 if (argc > 1 && argv[1][0] == '-') { 3524 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3525 argv[1][1]); 3526 usage(B_FALSE); 3527 } 3528 3529 /* check number of arguments */ 3530 if (argc < 2) { 3531 (void) fprintf(stderr, gettext("missing arguments\n")); 3532 usage(B_FALSE); 3533 } 3534 if (argc < 3) { 3535 if (strchr(argv[1], '=') == NULL) { 3536 (void) fprintf(stderr, gettext("missing property=value " 3537 "argument(s)\n")); 3538 } else { 3539 (void) fprintf(stderr, gettext("missing dataset " 3540 "name(s)\n")); 3541 } 3542 usage(B_FALSE); 3543 } 3544 3545 /* validate argument order: prop=val args followed by dataset args */ 3546 for (int i = 1; i < argc; i++) { 3547 if (strchr(argv[i], '=') != NULL) { 3548 if (ds_start > 0) { 3549 /* out-of-order prop=val argument */ 3550 (void) fprintf(stderr, gettext("invalid " 3551 "argument order\n"), i); 3552 usage(B_FALSE); 3553 } 3554 } else if (ds_start < 0) { 3555 ds_start = i; 3556 } 3557 } 3558 if (ds_start < 0) { 3559 (void) fprintf(stderr, gettext("missing dataset name(s)\n")); 3560 usage(B_FALSE); 3561 } 3562 3563 /* Populate a list of property settings */ 3564 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3565 nomem(); 3566 for (int i = 1; i < ds_start; i++) { 3567 if ((ret = parseprop(props, argv[i])) != 0) 3568 goto error; 3569 } 3570 3571 ret = zfs_for_each(argc - ds_start, argv + ds_start, 0, 3572 ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props); 3573 3574 error: 3575 nvlist_free(props); 3576 return (ret); 3577 } 3578 3579 typedef struct snap_cbdata { 3580 nvlist_t *sd_nvl; 3581 boolean_t sd_recursive; 3582 const char *sd_snapname; 3583 } snap_cbdata_t; 3584 3585 static int 3586 zfs_snapshot_cb(zfs_handle_t *zhp, void *arg) 3587 { 3588 snap_cbdata_t *sd = arg; 3589 char *name; 3590 int rv = 0; 3591 int error; 3592 3593 if (sd->sd_recursive && 3594 zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) != 0) { 3595 zfs_close(zhp); 3596 return (0); 3597 } 3598 3599 error = asprintf(&name, "%s@%s", zfs_get_name(zhp), sd->sd_snapname); 3600 if (error == -1) 3601 nomem(); 3602 fnvlist_add_boolean(sd->sd_nvl, name); 3603 free(name); 3604 3605 if (sd->sd_recursive) 3606 rv = zfs_iter_filesystems(zhp, zfs_snapshot_cb, sd); 3607 zfs_close(zhp); 3608 return (rv); 3609 } 3610 3611 /* 3612 * zfs snapshot [-r] [-o prop=value] ... <fs@snap> 3613 * 3614 * Creates a snapshot with the given name. While functionally equivalent to 3615 * 'zfs create', it is a separate command to differentiate intent. 3616 */ 3617 static int 3618 zfs_do_snapshot(int argc, char **argv) 3619 { 3620 int ret = 0; 3621 char c; 3622 nvlist_t *props; 3623 snap_cbdata_t sd = { 0 }; 3624 boolean_t multiple_snaps = B_FALSE; 3625 3626 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3627 nomem(); 3628 if (nvlist_alloc(&sd.sd_nvl, NV_UNIQUE_NAME, 0) != 0) 3629 nomem(); 3630 3631 /* check options */ 3632 while ((c = getopt(argc, argv, "ro:")) != -1) { 3633 switch (c) { 3634 case 'o': 3635 if (parseprop(props, optarg) != 0) 3636 return (1); 3637 break; 3638 case 'r': 3639 sd.sd_recursive = B_TRUE; 3640 multiple_snaps = B_TRUE; 3641 break; 3642 case '?': 3643 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3644 optopt); 3645 goto usage; 3646 } 3647 } 3648 3649 argc -= optind; 3650 argv += optind; 3651 3652 /* check number of arguments */ 3653 if (argc < 1) { 3654 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3655 goto usage; 3656 } 3657 3658 if (argc > 1) 3659 multiple_snaps = B_TRUE; 3660 for (; argc > 0; argc--, argv++) { 3661 char *atp; 3662 zfs_handle_t *zhp; 3663 3664 atp = strchr(argv[0], '@'); 3665 if (atp == NULL) 3666 goto usage; 3667 *atp = '\0'; 3668 sd.sd_snapname = atp + 1; 3669 zhp = zfs_open(g_zfs, argv[0], 3670 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3671 if (zhp == NULL) 3672 goto usage; 3673 if (zfs_snapshot_cb(zhp, &sd) != 0) 3674 goto usage; 3675 } 3676 3677 ret = zfs_snapshot_nvl(g_zfs, sd.sd_nvl, props); 3678 nvlist_free(sd.sd_nvl); 3679 nvlist_free(props); 3680 if (ret != 0 && multiple_snaps) 3681 (void) fprintf(stderr, gettext("no snapshots were created\n")); 3682 return (ret != 0); 3683 3684 usage: 3685 nvlist_free(sd.sd_nvl); 3686 nvlist_free(props); 3687 usage(B_FALSE); 3688 return (-1); 3689 } 3690 3691 /* 3692 * Send a backup stream to stdout. 3693 */ 3694 static int 3695 zfs_do_send(int argc, char **argv) 3696 { 3697 char *fromname = NULL; 3698 char *toname = NULL; 3699 char *resume_token = NULL; 3700 char *cp; 3701 zfs_handle_t *zhp; 3702 sendflags_t flags = { 0 }; 3703 int c, err; 3704 nvlist_t *dbgnv = NULL; 3705 boolean_t extraverbose = B_FALSE; 3706 3707 /* check options */ 3708 while ((c = getopt(argc, argv, ":i:I:RDpvnPLet:")) != -1) { 3709 switch (c) { 3710 case 'i': 3711 if (fromname) 3712 usage(B_FALSE); 3713 fromname = optarg; 3714 break; 3715 case 'I': 3716 if (fromname) 3717 usage(B_FALSE); 3718 fromname = optarg; 3719 flags.doall = B_TRUE; 3720 break; 3721 case 'R': 3722 flags.replicate = B_TRUE; 3723 break; 3724 case 'p': 3725 flags.props = B_TRUE; 3726 break; 3727 case 'P': 3728 flags.parsable = B_TRUE; 3729 flags.verbose = B_TRUE; 3730 break; 3731 case 'v': 3732 if (flags.verbose) 3733 extraverbose = B_TRUE; 3734 flags.verbose = B_TRUE; 3735 flags.progress = B_TRUE; 3736 break; 3737 case 'D': 3738 flags.dedup = B_TRUE; 3739 break; 3740 case 'n': 3741 flags.dryrun = B_TRUE; 3742 break; 3743 case 'L': 3744 flags.largeblock = B_TRUE; 3745 break; 3746 case 'e': 3747 flags.embed_data = B_TRUE; 3748 break; 3749 case 't': 3750 resume_token = optarg; 3751 break; 3752 case ':': 3753 (void) fprintf(stderr, gettext("missing argument for " 3754 "'%c' option\n"), optopt); 3755 usage(B_FALSE); 3756 break; 3757 case '?': 3758 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3759 optopt); 3760 usage(B_FALSE); 3761 } 3762 } 3763 3764 argc -= optind; 3765 argv += optind; 3766 3767 if (resume_token != NULL) { 3768 if (fromname != NULL || flags.replicate || flags.props || 3769 flags.dedup) { 3770 (void) fprintf(stderr, 3771 gettext("invalid flags combined with -t\n")); 3772 usage(B_FALSE); 3773 } 3774 if (argc != 0) { 3775 (void) fprintf(stderr, gettext("no additional " 3776 "arguments are permitted with -t\n")); 3777 usage(B_FALSE); 3778 } 3779 } else { 3780 if (argc < 1) { 3781 (void) fprintf(stderr, 3782 gettext("missing snapshot argument\n")); 3783 usage(B_FALSE); 3784 } 3785 if (argc > 1) { 3786 (void) fprintf(stderr, gettext("too many arguments\n")); 3787 usage(B_FALSE); 3788 } 3789 } 3790 3791 if (!flags.dryrun && isatty(STDOUT_FILENO)) { 3792 (void) fprintf(stderr, 3793 gettext("Error: Stream can not be written to a terminal.\n" 3794 "You must redirect standard output.\n")); 3795 return (1); 3796 } 3797 3798 if (resume_token != NULL) { 3799 return (zfs_send_resume(g_zfs, &flags, STDOUT_FILENO, 3800 resume_token)); 3801 } 3802 3803 /* 3804 * Special case sending a filesystem, or from a bookmark. 3805 */ 3806 if (strchr(argv[0], '@') == NULL || 3807 (fromname && strchr(fromname, '#') != NULL)) { 3808 char frombuf[ZFS_MAXNAMELEN]; 3809 enum lzc_send_flags lzc_flags = 0; 3810 3811 if (flags.replicate || flags.doall || flags.props || 3812 flags.dedup || flags.dryrun || flags.verbose || 3813 flags.progress) { 3814 (void) fprintf(stderr, 3815 gettext("Error: " 3816 "Unsupported flag with filesystem or bookmark.\n")); 3817 return (1); 3818 } 3819 3820 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_DATASET); 3821 if (zhp == NULL) 3822 return (1); 3823 3824 if (flags.largeblock) 3825 lzc_flags |= LZC_SEND_FLAG_LARGE_BLOCK; 3826 if (flags.embed_data) 3827 lzc_flags |= LZC_SEND_FLAG_EMBED_DATA; 3828 3829 if (fromname != NULL && 3830 (fromname[0] == '#' || fromname[0] == '@')) { 3831 /* 3832 * Incremental source name begins with # or @. 3833 * Default to same fs as target. 3834 */ 3835 (void) strncpy(frombuf, argv[0], sizeof (frombuf)); 3836 cp = strchr(frombuf, '@'); 3837 if (cp != NULL) 3838 *cp = '\0'; 3839 (void) strlcat(frombuf, fromname, sizeof (frombuf)); 3840 fromname = frombuf; 3841 } 3842 err = zfs_send_one(zhp, fromname, STDOUT_FILENO, lzc_flags); 3843 zfs_close(zhp); 3844 return (err != 0); 3845 } 3846 3847 cp = strchr(argv[0], '@'); 3848 *cp = '\0'; 3849 toname = cp + 1; 3850 zhp = zfs_open(g_zfs, argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 3851 if (zhp == NULL) 3852 return (1); 3853 3854 /* 3855 * If they specified the full path to the snapshot, chop off 3856 * everything except the short name of the snapshot, but special 3857 * case if they specify the origin. 3858 */ 3859 if (fromname && (cp = strchr(fromname, '@')) != NULL) { 3860 char origin[ZFS_MAXNAMELEN]; 3861 zprop_source_t src; 3862 3863 (void) zfs_prop_get(zhp, ZFS_PROP_ORIGIN, 3864 origin, sizeof (origin), &src, NULL, 0, B_FALSE); 3865 3866 if (strcmp(origin, fromname) == 0) { 3867 fromname = NULL; 3868 flags.fromorigin = B_TRUE; 3869 } else { 3870 *cp = '\0'; 3871 if (cp != fromname && strcmp(argv[0], fromname)) { 3872 (void) fprintf(stderr, 3873 gettext("incremental source must be " 3874 "in same filesystem\n")); 3875 usage(B_FALSE); 3876 } 3877 fromname = cp + 1; 3878 if (strchr(fromname, '@') || strchr(fromname, '/')) { 3879 (void) fprintf(stderr, 3880 gettext("invalid incremental source\n")); 3881 usage(B_FALSE); 3882 } 3883 } 3884 } 3885 3886 if (flags.replicate && fromname == NULL) 3887 flags.doall = B_TRUE; 3888 3889 err = zfs_send(zhp, fromname, toname, &flags, STDOUT_FILENO, NULL, 0, 3890 extraverbose ? &dbgnv : NULL); 3891 3892 if (extraverbose && dbgnv != NULL) { 3893 /* 3894 * dump_nvlist prints to stdout, but that's been 3895 * redirected to a file. Make it print to stderr 3896 * instead. 3897 */ 3898 (void) dup2(STDERR_FILENO, STDOUT_FILENO); 3899 dump_nvlist(dbgnv, 0); 3900 nvlist_free(dbgnv); 3901 } 3902 zfs_close(zhp); 3903 3904 return (err != 0); 3905 } 3906 3907 /* 3908 * Restore a backup stream from stdin. 3909 */ 3910 static int 3911 zfs_do_receive(int argc, char **argv) 3912 { 3913 int c, err = 0; 3914 recvflags_t flags = { 0 }; 3915 boolean_t abort_resumable = B_FALSE; 3916 3917 nvlist_t *props; 3918 nvpair_t *nvp = NULL; 3919 3920 if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0) 3921 nomem(); 3922 3923 /* check options */ 3924 while ((c = getopt(argc, argv, ":o:denuvFsA")) != -1) { 3925 switch (c) { 3926 case 'o': 3927 if (parseprop(props, optarg) != 0) 3928 return (1); 3929 break; 3930 case 'd': 3931 flags.isprefix = B_TRUE; 3932 break; 3933 case 'e': 3934 flags.isprefix = B_TRUE; 3935 flags.istail = B_TRUE; 3936 break; 3937 case 'n': 3938 flags.dryrun = B_TRUE; 3939 break; 3940 case 'u': 3941 flags.nomount = B_TRUE; 3942 break; 3943 case 'v': 3944 flags.verbose = B_TRUE; 3945 break; 3946 case 's': 3947 flags.resumable = B_TRUE; 3948 break; 3949 case 'F': 3950 flags.force = B_TRUE; 3951 break; 3952 case 'A': 3953 abort_resumable = B_TRUE; 3954 break; 3955 case ':': 3956 (void) fprintf(stderr, gettext("missing argument for " 3957 "'%c' option\n"), optopt); 3958 usage(B_FALSE); 3959 break; 3960 case '?': 3961 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 3962 optopt); 3963 usage(B_FALSE); 3964 } 3965 } 3966 3967 argc -= optind; 3968 argv += optind; 3969 3970 /* check number of arguments */ 3971 if (argc < 1) { 3972 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 3973 usage(B_FALSE); 3974 } 3975 if (argc > 1) { 3976 (void) fprintf(stderr, gettext("too many arguments\n")); 3977 usage(B_FALSE); 3978 } 3979 3980 while ((nvp = nvlist_next_nvpair(props, nvp))) { 3981 if (strcmp(nvpair_name(nvp), "origin") != 0) { 3982 (void) fprintf(stderr, gettext("invalid option")); 3983 usage(B_FALSE); 3984 } 3985 } 3986 3987 if (abort_resumable) { 3988 if (flags.isprefix || flags.istail || flags.dryrun || 3989 flags.resumable || flags.nomount) { 3990 (void) fprintf(stderr, gettext("invalid option")); 3991 usage(B_FALSE); 3992 } 3993 3994 char namebuf[ZFS_MAXNAMELEN]; 3995 (void) snprintf(namebuf, sizeof (namebuf), 3996 "%s/%%recv", argv[0]); 3997 3998 if (zfs_dataset_exists(g_zfs, namebuf, 3999 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME)) { 4000 zfs_handle_t *zhp = zfs_open(g_zfs, 4001 namebuf, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4002 if (zhp == NULL) 4003 return (1); 4004 err = zfs_destroy(zhp, B_FALSE); 4005 } else { 4006 zfs_handle_t *zhp = zfs_open(g_zfs, 4007 argv[0], ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 4008 if (zhp == NULL) 4009 usage(B_FALSE); 4010 if (!zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) || 4011 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 4012 NULL, 0, NULL, NULL, 0, B_TRUE) == -1) { 4013 (void) fprintf(stderr, 4014 gettext("'%s' does not have any " 4015 "resumable receive state to abort\n"), 4016 argv[0]); 4017 return (1); 4018 } 4019 err = zfs_destroy(zhp, B_FALSE); 4020 } 4021 4022 return (err != 0); 4023 } 4024 4025 if (isatty(STDIN_FILENO)) { 4026 (void) fprintf(stderr, 4027 gettext("Error: Backup stream can not be read " 4028 "from a terminal.\n" 4029 "You must redirect standard input.\n")); 4030 return (1); 4031 } 4032 err = zfs_receive(g_zfs, argv[0], props, &flags, STDIN_FILENO, NULL); 4033 4034 return (err != 0); 4035 } 4036 4037 /* 4038 * allow/unallow stuff 4039 */ 4040 /* copied from zfs/sys/dsl_deleg.h */ 4041 #define ZFS_DELEG_PERM_CREATE "create" 4042 #define ZFS_DELEG_PERM_DESTROY "destroy" 4043 #define ZFS_DELEG_PERM_SNAPSHOT "snapshot" 4044 #define ZFS_DELEG_PERM_ROLLBACK "rollback" 4045 #define ZFS_DELEG_PERM_CLONE "clone" 4046 #define ZFS_DELEG_PERM_PROMOTE "promote" 4047 #define ZFS_DELEG_PERM_RENAME "rename" 4048 #define ZFS_DELEG_PERM_MOUNT "mount" 4049 #define ZFS_DELEG_PERM_SHARE "share" 4050 #define ZFS_DELEG_PERM_SEND "send" 4051 #define ZFS_DELEG_PERM_RECEIVE "receive" 4052 #define ZFS_DELEG_PERM_ALLOW "allow" 4053 #define ZFS_DELEG_PERM_USERPROP "userprop" 4054 #define ZFS_DELEG_PERM_VSCAN "vscan" /* ??? */ 4055 #define ZFS_DELEG_PERM_USERQUOTA "userquota" 4056 #define ZFS_DELEG_PERM_GROUPQUOTA "groupquota" 4057 #define ZFS_DELEG_PERM_USERUSED "userused" 4058 #define ZFS_DELEG_PERM_GROUPUSED "groupused" 4059 #define ZFS_DELEG_PERM_HOLD "hold" 4060 #define ZFS_DELEG_PERM_RELEASE "release" 4061 #define ZFS_DELEG_PERM_DIFF "diff" 4062 #define ZFS_DELEG_PERM_BOOKMARK "bookmark" 4063 4064 #define ZFS_NUM_DELEG_NOTES ZFS_DELEG_NOTE_NONE 4065 4066 static zfs_deleg_perm_tab_t zfs_deleg_perm_tbl[] = { 4067 { ZFS_DELEG_PERM_ALLOW, ZFS_DELEG_NOTE_ALLOW }, 4068 { ZFS_DELEG_PERM_CLONE, ZFS_DELEG_NOTE_CLONE }, 4069 { ZFS_DELEG_PERM_CREATE, ZFS_DELEG_NOTE_CREATE }, 4070 { ZFS_DELEG_PERM_DESTROY, ZFS_DELEG_NOTE_DESTROY }, 4071 { ZFS_DELEG_PERM_DIFF, ZFS_DELEG_NOTE_DIFF}, 4072 { ZFS_DELEG_PERM_HOLD, ZFS_DELEG_NOTE_HOLD }, 4073 { ZFS_DELEG_PERM_MOUNT, ZFS_DELEG_NOTE_MOUNT }, 4074 { ZFS_DELEG_PERM_PROMOTE, ZFS_DELEG_NOTE_PROMOTE }, 4075 { ZFS_DELEG_PERM_RECEIVE, ZFS_DELEG_NOTE_RECEIVE }, 4076 { ZFS_DELEG_PERM_RELEASE, ZFS_DELEG_NOTE_RELEASE }, 4077 { ZFS_DELEG_PERM_RENAME, ZFS_DELEG_NOTE_RENAME }, 4078 { ZFS_DELEG_PERM_ROLLBACK, ZFS_DELEG_NOTE_ROLLBACK }, 4079 { ZFS_DELEG_PERM_SEND, ZFS_DELEG_NOTE_SEND }, 4080 { ZFS_DELEG_PERM_SHARE, ZFS_DELEG_NOTE_SHARE }, 4081 { ZFS_DELEG_PERM_SNAPSHOT, ZFS_DELEG_NOTE_SNAPSHOT }, 4082 { ZFS_DELEG_PERM_BOOKMARK, ZFS_DELEG_NOTE_BOOKMARK }, 4083 4084 { ZFS_DELEG_PERM_GROUPQUOTA, ZFS_DELEG_NOTE_GROUPQUOTA }, 4085 { ZFS_DELEG_PERM_GROUPUSED, ZFS_DELEG_NOTE_GROUPUSED }, 4086 { ZFS_DELEG_PERM_USERPROP, ZFS_DELEG_NOTE_USERPROP }, 4087 { ZFS_DELEG_PERM_USERQUOTA, ZFS_DELEG_NOTE_USERQUOTA }, 4088 { ZFS_DELEG_PERM_USERUSED, ZFS_DELEG_NOTE_USERUSED }, 4089 { NULL, ZFS_DELEG_NOTE_NONE } 4090 }; 4091 4092 /* permission structure */ 4093 typedef struct deleg_perm { 4094 zfs_deleg_who_type_t dp_who_type; 4095 const char *dp_name; 4096 boolean_t dp_local; 4097 boolean_t dp_descend; 4098 } deleg_perm_t; 4099 4100 /* */ 4101 typedef struct deleg_perm_node { 4102 deleg_perm_t dpn_perm; 4103 4104 uu_avl_node_t dpn_avl_node; 4105 } deleg_perm_node_t; 4106 4107 typedef struct fs_perm fs_perm_t; 4108 4109 /* permissions set */ 4110 typedef struct who_perm { 4111 zfs_deleg_who_type_t who_type; 4112 const char *who_name; /* id */ 4113 char who_ug_name[256]; /* user/group name */ 4114 fs_perm_t *who_fsperm; /* uplink */ 4115 4116 uu_avl_t *who_deleg_perm_avl; /* permissions */ 4117 } who_perm_t; 4118 4119 /* */ 4120 typedef struct who_perm_node { 4121 who_perm_t who_perm; 4122 uu_avl_node_t who_avl_node; 4123 } who_perm_node_t; 4124 4125 typedef struct fs_perm_set fs_perm_set_t; 4126 /* fs permissions */ 4127 struct fs_perm { 4128 const char *fsp_name; 4129 4130 uu_avl_t *fsp_sc_avl; /* sets,create */ 4131 uu_avl_t *fsp_uge_avl; /* user,group,everyone */ 4132 4133 fs_perm_set_t *fsp_set; /* uplink */ 4134 }; 4135 4136 /* */ 4137 typedef struct fs_perm_node { 4138 fs_perm_t fspn_fsperm; 4139 uu_avl_t *fspn_avl; 4140 4141 uu_list_node_t fspn_list_node; 4142 } fs_perm_node_t; 4143 4144 /* top level structure */ 4145 struct fs_perm_set { 4146 uu_list_pool_t *fsps_list_pool; 4147 uu_list_t *fsps_list; /* list of fs_perms */ 4148 4149 uu_avl_pool_t *fsps_named_set_avl_pool; 4150 uu_avl_pool_t *fsps_who_perm_avl_pool; 4151 uu_avl_pool_t *fsps_deleg_perm_avl_pool; 4152 }; 4153 4154 static inline const char * 4155 deleg_perm_type(zfs_deleg_note_t note) 4156 { 4157 /* subcommands */ 4158 switch (note) { 4159 /* SUBCOMMANDS */ 4160 /* OTHER */ 4161 case ZFS_DELEG_NOTE_GROUPQUOTA: 4162 case ZFS_DELEG_NOTE_GROUPUSED: 4163 case ZFS_DELEG_NOTE_USERPROP: 4164 case ZFS_DELEG_NOTE_USERQUOTA: 4165 case ZFS_DELEG_NOTE_USERUSED: 4166 /* other */ 4167 return (gettext("other")); 4168 default: 4169 return (gettext("subcommand")); 4170 } 4171 } 4172 4173 static int 4174 who_type2weight(zfs_deleg_who_type_t who_type) 4175 { 4176 int res; 4177 switch (who_type) { 4178 case ZFS_DELEG_NAMED_SET_SETS: 4179 case ZFS_DELEG_NAMED_SET: 4180 res = 0; 4181 break; 4182 case ZFS_DELEG_CREATE_SETS: 4183 case ZFS_DELEG_CREATE: 4184 res = 1; 4185 break; 4186 case ZFS_DELEG_USER_SETS: 4187 case ZFS_DELEG_USER: 4188 res = 2; 4189 break; 4190 case ZFS_DELEG_GROUP_SETS: 4191 case ZFS_DELEG_GROUP: 4192 res = 3; 4193 break; 4194 case ZFS_DELEG_EVERYONE_SETS: 4195 case ZFS_DELEG_EVERYONE: 4196 res = 4; 4197 break; 4198 default: 4199 res = -1; 4200 } 4201 4202 return (res); 4203 } 4204 4205 /* ARGSUSED */ 4206 static int 4207 who_perm_compare(const void *larg, const void *rarg, void *unused) 4208 { 4209 const who_perm_node_t *l = larg; 4210 const who_perm_node_t *r = rarg; 4211 zfs_deleg_who_type_t ltype = l->who_perm.who_type; 4212 zfs_deleg_who_type_t rtype = r->who_perm.who_type; 4213 int lweight = who_type2weight(ltype); 4214 int rweight = who_type2weight(rtype); 4215 int res = lweight - rweight; 4216 if (res == 0) 4217 res = strncmp(l->who_perm.who_name, r->who_perm.who_name, 4218 ZFS_MAX_DELEG_NAME-1); 4219 4220 if (res == 0) 4221 return (0); 4222 if (res > 0) 4223 return (1); 4224 else 4225 return (-1); 4226 } 4227 4228 /* ARGSUSED */ 4229 static int 4230 deleg_perm_compare(const void *larg, const void *rarg, void *unused) 4231 { 4232 const deleg_perm_node_t *l = larg; 4233 const deleg_perm_node_t *r = rarg; 4234 int res = strncmp(l->dpn_perm.dp_name, r->dpn_perm.dp_name, 4235 ZFS_MAX_DELEG_NAME-1); 4236 4237 if (res == 0) 4238 return (0); 4239 4240 if (res > 0) 4241 return (1); 4242 else 4243 return (-1); 4244 } 4245 4246 static inline void 4247 fs_perm_set_init(fs_perm_set_t *fspset) 4248 { 4249 bzero(fspset, sizeof (fs_perm_set_t)); 4250 4251 if ((fspset->fsps_list_pool = uu_list_pool_create("fsps_list_pool", 4252 sizeof (fs_perm_node_t), offsetof(fs_perm_node_t, fspn_list_node), 4253 NULL, UU_DEFAULT)) == NULL) 4254 nomem(); 4255 if ((fspset->fsps_list = uu_list_create(fspset->fsps_list_pool, NULL, 4256 UU_DEFAULT)) == NULL) 4257 nomem(); 4258 4259 if ((fspset->fsps_named_set_avl_pool = uu_avl_pool_create( 4260 "named_set_avl_pool", sizeof (who_perm_node_t), offsetof( 4261 who_perm_node_t, who_avl_node), who_perm_compare, 4262 UU_DEFAULT)) == NULL) 4263 nomem(); 4264 4265 if ((fspset->fsps_who_perm_avl_pool = uu_avl_pool_create( 4266 "who_perm_avl_pool", sizeof (who_perm_node_t), offsetof( 4267 who_perm_node_t, who_avl_node), who_perm_compare, 4268 UU_DEFAULT)) == NULL) 4269 nomem(); 4270 4271 if ((fspset->fsps_deleg_perm_avl_pool = uu_avl_pool_create( 4272 "deleg_perm_avl_pool", sizeof (deleg_perm_node_t), offsetof( 4273 deleg_perm_node_t, dpn_avl_node), deleg_perm_compare, UU_DEFAULT)) 4274 == NULL) 4275 nomem(); 4276 } 4277 4278 static inline void fs_perm_fini(fs_perm_t *); 4279 static inline void who_perm_fini(who_perm_t *); 4280 4281 static inline void 4282 fs_perm_set_fini(fs_perm_set_t *fspset) 4283 { 4284 fs_perm_node_t *node = uu_list_first(fspset->fsps_list); 4285 4286 while (node != NULL) { 4287 fs_perm_node_t *next_node = 4288 uu_list_next(fspset->fsps_list, node); 4289 fs_perm_t *fsperm = &node->fspn_fsperm; 4290 fs_perm_fini(fsperm); 4291 uu_list_remove(fspset->fsps_list, node); 4292 free(node); 4293 node = next_node; 4294 } 4295 4296 uu_avl_pool_destroy(fspset->fsps_named_set_avl_pool); 4297 uu_avl_pool_destroy(fspset->fsps_who_perm_avl_pool); 4298 uu_avl_pool_destroy(fspset->fsps_deleg_perm_avl_pool); 4299 } 4300 4301 static inline void 4302 deleg_perm_init(deleg_perm_t *deleg_perm, zfs_deleg_who_type_t type, 4303 const char *name) 4304 { 4305 deleg_perm->dp_who_type = type; 4306 deleg_perm->dp_name = name; 4307 } 4308 4309 static inline void 4310 who_perm_init(who_perm_t *who_perm, fs_perm_t *fsperm, 4311 zfs_deleg_who_type_t type, const char *name) 4312 { 4313 uu_avl_pool_t *pool; 4314 pool = fsperm->fsp_set->fsps_deleg_perm_avl_pool; 4315 4316 bzero(who_perm, sizeof (who_perm_t)); 4317 4318 if ((who_perm->who_deleg_perm_avl = uu_avl_create(pool, NULL, 4319 UU_DEFAULT)) == NULL) 4320 nomem(); 4321 4322 who_perm->who_type = type; 4323 who_perm->who_name = name; 4324 who_perm->who_fsperm = fsperm; 4325 } 4326 4327 static inline void 4328 who_perm_fini(who_perm_t *who_perm) 4329 { 4330 deleg_perm_node_t *node = uu_avl_first(who_perm->who_deleg_perm_avl); 4331 4332 while (node != NULL) { 4333 deleg_perm_node_t *next_node = 4334 uu_avl_next(who_perm->who_deleg_perm_avl, node); 4335 4336 uu_avl_remove(who_perm->who_deleg_perm_avl, node); 4337 free(node); 4338 node = next_node; 4339 } 4340 4341 uu_avl_destroy(who_perm->who_deleg_perm_avl); 4342 } 4343 4344 static inline void 4345 fs_perm_init(fs_perm_t *fsperm, fs_perm_set_t *fspset, const char *fsname) 4346 { 4347 uu_avl_pool_t *nset_pool = fspset->fsps_named_set_avl_pool; 4348 uu_avl_pool_t *who_pool = fspset->fsps_who_perm_avl_pool; 4349 4350 bzero(fsperm, sizeof (fs_perm_t)); 4351 4352 if ((fsperm->fsp_sc_avl = uu_avl_create(nset_pool, NULL, UU_DEFAULT)) 4353 == NULL) 4354 nomem(); 4355 4356 if ((fsperm->fsp_uge_avl = uu_avl_create(who_pool, NULL, UU_DEFAULT)) 4357 == NULL) 4358 nomem(); 4359 4360 fsperm->fsp_set = fspset; 4361 fsperm->fsp_name = fsname; 4362 } 4363 4364 static inline void 4365 fs_perm_fini(fs_perm_t *fsperm) 4366 { 4367 who_perm_node_t *node = uu_avl_first(fsperm->fsp_sc_avl); 4368 while (node != NULL) { 4369 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_sc_avl, 4370 node); 4371 who_perm_t *who_perm = &node->who_perm; 4372 who_perm_fini(who_perm); 4373 uu_avl_remove(fsperm->fsp_sc_avl, node); 4374 free(node); 4375 node = next_node; 4376 } 4377 4378 node = uu_avl_first(fsperm->fsp_uge_avl); 4379 while (node != NULL) { 4380 who_perm_node_t *next_node = uu_avl_next(fsperm->fsp_uge_avl, 4381 node); 4382 who_perm_t *who_perm = &node->who_perm; 4383 who_perm_fini(who_perm); 4384 uu_avl_remove(fsperm->fsp_uge_avl, node); 4385 free(node); 4386 node = next_node; 4387 } 4388 4389 uu_avl_destroy(fsperm->fsp_sc_avl); 4390 uu_avl_destroy(fsperm->fsp_uge_avl); 4391 } 4392 4393 static void 4394 set_deleg_perm_node(uu_avl_t *avl, deleg_perm_node_t *node, 4395 zfs_deleg_who_type_t who_type, const char *name, char locality) 4396 { 4397 uu_avl_index_t idx = 0; 4398 4399 deleg_perm_node_t *found_node = NULL; 4400 deleg_perm_t *deleg_perm = &node->dpn_perm; 4401 4402 deleg_perm_init(deleg_perm, who_type, name); 4403 4404 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4405 == NULL) 4406 uu_avl_insert(avl, node, idx); 4407 else { 4408 node = found_node; 4409 deleg_perm = &node->dpn_perm; 4410 } 4411 4412 4413 switch (locality) { 4414 case ZFS_DELEG_LOCAL: 4415 deleg_perm->dp_local = B_TRUE; 4416 break; 4417 case ZFS_DELEG_DESCENDENT: 4418 deleg_perm->dp_descend = B_TRUE; 4419 break; 4420 case ZFS_DELEG_NA: 4421 break; 4422 default: 4423 assert(B_FALSE); /* invalid locality */ 4424 } 4425 } 4426 4427 static inline int 4428 parse_who_perm(who_perm_t *who_perm, nvlist_t *nvl, char locality) 4429 { 4430 nvpair_t *nvp = NULL; 4431 fs_perm_set_t *fspset = who_perm->who_fsperm->fsp_set; 4432 uu_avl_t *avl = who_perm->who_deleg_perm_avl; 4433 zfs_deleg_who_type_t who_type = who_perm->who_type; 4434 4435 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4436 const char *name = nvpair_name(nvp); 4437 data_type_t type = nvpair_type(nvp); 4438 uu_avl_pool_t *avl_pool = fspset->fsps_deleg_perm_avl_pool; 4439 deleg_perm_node_t *node = 4440 safe_malloc(sizeof (deleg_perm_node_t)); 4441 4442 assert(type == DATA_TYPE_BOOLEAN); 4443 4444 uu_avl_node_init(node, &node->dpn_avl_node, avl_pool); 4445 set_deleg_perm_node(avl, node, who_type, name, locality); 4446 } 4447 4448 return (0); 4449 } 4450 4451 static inline int 4452 parse_fs_perm(fs_perm_t *fsperm, nvlist_t *nvl) 4453 { 4454 nvpair_t *nvp = NULL; 4455 fs_perm_set_t *fspset = fsperm->fsp_set; 4456 4457 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4458 nvlist_t *nvl2 = NULL; 4459 const char *name = nvpair_name(nvp); 4460 uu_avl_t *avl = NULL; 4461 uu_avl_pool_t *avl_pool = NULL; 4462 zfs_deleg_who_type_t perm_type = name[0]; 4463 char perm_locality = name[1]; 4464 const char *perm_name = name + 3; 4465 boolean_t is_set = B_TRUE; 4466 who_perm_t *who_perm = NULL; 4467 4468 assert('$' == name[2]); 4469 4470 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4471 return (-1); 4472 4473 switch (perm_type) { 4474 case ZFS_DELEG_CREATE: 4475 case ZFS_DELEG_CREATE_SETS: 4476 case ZFS_DELEG_NAMED_SET: 4477 case ZFS_DELEG_NAMED_SET_SETS: 4478 avl_pool = fspset->fsps_named_set_avl_pool; 4479 avl = fsperm->fsp_sc_avl; 4480 break; 4481 case ZFS_DELEG_USER: 4482 case ZFS_DELEG_USER_SETS: 4483 case ZFS_DELEG_GROUP: 4484 case ZFS_DELEG_GROUP_SETS: 4485 case ZFS_DELEG_EVERYONE: 4486 case ZFS_DELEG_EVERYONE_SETS: 4487 avl_pool = fspset->fsps_who_perm_avl_pool; 4488 avl = fsperm->fsp_uge_avl; 4489 break; 4490 4491 default: 4492 assert(!"unhandled zfs_deleg_who_type_t"); 4493 } 4494 4495 if (is_set) { 4496 who_perm_node_t *found_node = NULL; 4497 who_perm_node_t *node = safe_malloc( 4498 sizeof (who_perm_node_t)); 4499 who_perm = &node->who_perm; 4500 uu_avl_index_t idx = 0; 4501 4502 uu_avl_node_init(node, &node->who_avl_node, avl_pool); 4503 who_perm_init(who_perm, fsperm, perm_type, perm_name); 4504 4505 if ((found_node = uu_avl_find(avl, node, NULL, &idx)) 4506 == NULL) { 4507 if (avl == fsperm->fsp_uge_avl) { 4508 uid_t rid = 0; 4509 struct passwd *p = NULL; 4510 struct group *g = NULL; 4511 const char *nice_name = NULL; 4512 4513 switch (perm_type) { 4514 case ZFS_DELEG_USER_SETS: 4515 case ZFS_DELEG_USER: 4516 rid = atoi(perm_name); 4517 p = getpwuid(rid); 4518 if (p) 4519 nice_name = p->pw_name; 4520 break; 4521 case ZFS_DELEG_GROUP_SETS: 4522 case ZFS_DELEG_GROUP: 4523 rid = atoi(perm_name); 4524 g = getgrgid(rid); 4525 if (g) 4526 nice_name = g->gr_name; 4527 break; 4528 4529 default: 4530 break; 4531 } 4532 4533 if (nice_name != NULL) 4534 (void) strlcpy( 4535 node->who_perm.who_ug_name, 4536 nice_name, 256); 4537 } 4538 4539 uu_avl_insert(avl, node, idx); 4540 } else { 4541 node = found_node; 4542 who_perm = &node->who_perm; 4543 } 4544 } 4545 4546 (void) parse_who_perm(who_perm, nvl2, perm_locality); 4547 } 4548 4549 return (0); 4550 } 4551 4552 static inline int 4553 parse_fs_perm_set(fs_perm_set_t *fspset, nvlist_t *nvl) 4554 { 4555 nvpair_t *nvp = NULL; 4556 uu_avl_index_t idx = 0; 4557 4558 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 4559 nvlist_t *nvl2 = NULL; 4560 const char *fsname = nvpair_name(nvp); 4561 data_type_t type = nvpair_type(nvp); 4562 fs_perm_t *fsperm = NULL; 4563 fs_perm_node_t *node = safe_malloc(sizeof (fs_perm_node_t)); 4564 if (node == NULL) 4565 nomem(); 4566 4567 fsperm = &node->fspn_fsperm; 4568 4569 assert(DATA_TYPE_NVLIST == type); 4570 4571 uu_list_node_init(node, &node->fspn_list_node, 4572 fspset->fsps_list_pool); 4573 4574 idx = uu_list_numnodes(fspset->fsps_list); 4575 fs_perm_init(fsperm, fspset, fsname); 4576 4577 if (nvpair_value_nvlist(nvp, &nvl2) != 0) 4578 return (-1); 4579 4580 (void) parse_fs_perm(fsperm, nvl2); 4581 4582 uu_list_insert(fspset->fsps_list, node, idx); 4583 } 4584 4585 return (0); 4586 } 4587 4588 static inline const char * 4589 deleg_perm_comment(zfs_deleg_note_t note) 4590 { 4591 const char *str = ""; 4592 4593 /* subcommands */ 4594 switch (note) { 4595 /* SUBCOMMANDS */ 4596 case ZFS_DELEG_NOTE_ALLOW: 4597 str = gettext("Must also have the permission that is being" 4598 "\n\t\t\t\tallowed"); 4599 break; 4600 case ZFS_DELEG_NOTE_CLONE: 4601 str = gettext("Must also have the 'create' ability and 'mount'" 4602 "\n\t\t\t\tability in the origin file system"); 4603 break; 4604 case ZFS_DELEG_NOTE_CREATE: 4605 str = gettext("Must also have the 'mount' ability"); 4606 break; 4607 case ZFS_DELEG_NOTE_DESTROY: 4608 str = gettext("Must also have the 'mount' ability"); 4609 break; 4610 case ZFS_DELEG_NOTE_DIFF: 4611 str = gettext("Allows lookup of paths within a dataset;" 4612 "\n\t\t\t\tgiven an object number. Ordinary users need this" 4613 "\n\t\t\t\tin order to use zfs diff"); 4614 break; 4615 case ZFS_DELEG_NOTE_HOLD: 4616 str = gettext("Allows adding a user hold to a snapshot"); 4617 break; 4618 case ZFS_DELEG_NOTE_MOUNT: 4619 str = gettext("Allows mount/umount of ZFS datasets"); 4620 break; 4621 case ZFS_DELEG_NOTE_PROMOTE: 4622 str = gettext("Must also have the 'mount'\n\t\t\t\tand" 4623 " 'promote' ability in the origin file system"); 4624 break; 4625 case ZFS_DELEG_NOTE_RECEIVE: 4626 str = gettext("Must also have the 'mount' and 'create'" 4627 " ability"); 4628 break; 4629 case ZFS_DELEG_NOTE_RELEASE: 4630 str = gettext("Allows releasing a user hold which\n\t\t\t\t" 4631 "might destroy the snapshot"); 4632 break; 4633 case ZFS_DELEG_NOTE_RENAME: 4634 str = gettext("Must also have the 'mount' and 'create'" 4635 "\n\t\t\t\tability in the new parent"); 4636 break; 4637 case ZFS_DELEG_NOTE_ROLLBACK: 4638 str = gettext(""); 4639 break; 4640 case ZFS_DELEG_NOTE_SEND: 4641 str = gettext(""); 4642 break; 4643 case ZFS_DELEG_NOTE_SHARE: 4644 str = gettext("Allows sharing file systems over NFS or SMB" 4645 "\n\t\t\t\tprotocols"); 4646 break; 4647 case ZFS_DELEG_NOTE_SNAPSHOT: 4648 str = gettext(""); 4649 break; 4650 /* 4651 * case ZFS_DELEG_NOTE_VSCAN: 4652 * str = gettext(""); 4653 * break; 4654 */ 4655 /* OTHER */ 4656 case ZFS_DELEG_NOTE_GROUPQUOTA: 4657 str = gettext("Allows accessing any groupquota@... property"); 4658 break; 4659 case ZFS_DELEG_NOTE_GROUPUSED: 4660 str = gettext("Allows reading any groupused@... property"); 4661 break; 4662 case ZFS_DELEG_NOTE_USERPROP: 4663 str = gettext("Allows changing any user property"); 4664 break; 4665 case ZFS_DELEG_NOTE_USERQUOTA: 4666 str = gettext("Allows accessing any userquota@... property"); 4667 break; 4668 case ZFS_DELEG_NOTE_USERUSED: 4669 str = gettext("Allows reading any userused@... property"); 4670 break; 4671 /* other */ 4672 default: 4673 str = ""; 4674 } 4675 4676 return (str); 4677 } 4678 4679 struct allow_opts { 4680 boolean_t local; 4681 boolean_t descend; 4682 boolean_t user; 4683 boolean_t group; 4684 boolean_t everyone; 4685 boolean_t create; 4686 boolean_t set; 4687 boolean_t recursive; /* unallow only */ 4688 boolean_t prt_usage; 4689 4690 boolean_t prt_perms; 4691 char *who; 4692 char *perms; 4693 const char *dataset; 4694 }; 4695 4696 static inline int 4697 prop_cmp(const void *a, const void *b) 4698 { 4699 const char *str1 = *(const char **)a; 4700 const char *str2 = *(const char **)b; 4701 return (strcmp(str1, str2)); 4702 } 4703 4704 static void 4705 allow_usage(boolean_t un, boolean_t requested, const char *msg) 4706 { 4707 const char *opt_desc[] = { 4708 "-h", gettext("show this help message and exit"), 4709 "-l", gettext("set permission locally"), 4710 "-d", gettext("set permission for descents"), 4711 "-u", gettext("set permission for user"), 4712 "-g", gettext("set permission for group"), 4713 "-e", gettext("set permission for everyone"), 4714 "-c", gettext("set create time permission"), 4715 "-s", gettext("define permission set"), 4716 /* unallow only */ 4717 "-r", gettext("remove permissions recursively"), 4718 }; 4719 size_t unallow_size = sizeof (opt_desc) / sizeof (char *); 4720 size_t allow_size = unallow_size - 2; 4721 const char *props[ZFS_NUM_PROPS]; 4722 int i; 4723 size_t count = 0; 4724 FILE *fp = requested ? stdout : stderr; 4725 zprop_desc_t *pdtbl = zfs_prop_get_table(); 4726 const char *fmt = gettext("%-16s %-14s\t%s\n"); 4727 4728 (void) fprintf(fp, gettext("Usage: %s\n"), get_usage(un ? HELP_UNALLOW : 4729 HELP_ALLOW)); 4730 (void) fprintf(fp, gettext("Options:\n")); 4731 for (int i = 0; i < (un ? unallow_size : allow_size); i++) { 4732 const char *opt = opt_desc[i++]; 4733 const char *optdsc = opt_desc[i]; 4734 (void) fprintf(fp, gettext(" %-10s %s\n"), opt, optdsc); 4735 } 4736 4737 (void) fprintf(fp, gettext("\nThe following permissions are " 4738 "supported:\n\n")); 4739 (void) fprintf(fp, fmt, gettext("NAME"), gettext("TYPE"), 4740 gettext("NOTES")); 4741 for (i = 0; i < ZFS_NUM_DELEG_NOTES; i++) { 4742 const char *perm_name = zfs_deleg_perm_tbl[i].z_perm; 4743 zfs_deleg_note_t perm_note = zfs_deleg_perm_tbl[i].z_note; 4744 const char *perm_type = deleg_perm_type(perm_note); 4745 const char *perm_comment = deleg_perm_comment(perm_note); 4746 (void) fprintf(fp, fmt, perm_name, perm_type, perm_comment); 4747 } 4748 4749 for (i = 0; i < ZFS_NUM_PROPS; i++) { 4750 zprop_desc_t *pd = &pdtbl[i]; 4751 if (pd->pd_visible != B_TRUE) 4752 continue; 4753 4754 if (pd->pd_attr == PROP_READONLY) 4755 continue; 4756 4757 props[count++] = pd->pd_name; 4758 } 4759 props[count] = NULL; 4760 4761 qsort(props, count, sizeof (char *), prop_cmp); 4762 4763 for (i = 0; i < count; i++) 4764 (void) fprintf(fp, fmt, props[i], gettext("property"), ""); 4765 4766 if (msg != NULL) 4767 (void) fprintf(fp, gettext("\nzfs: error: %s"), msg); 4768 4769 exit(requested ? 0 : 2); 4770 } 4771 4772 static inline const char * 4773 munge_args(int argc, char **argv, boolean_t un, size_t expected_argc, 4774 char **permsp) 4775 { 4776 if (un && argc == expected_argc - 1) 4777 *permsp = NULL; 4778 else if (argc == expected_argc) 4779 *permsp = argv[argc - 2]; 4780 else 4781 allow_usage(un, B_FALSE, 4782 gettext("wrong number of parameters\n")); 4783 4784 return (argv[argc - 1]); 4785 } 4786 4787 static void 4788 parse_allow_args(int argc, char **argv, boolean_t un, struct allow_opts *opts) 4789 { 4790 int uge_sum = opts->user + opts->group + opts->everyone; 4791 int csuge_sum = opts->create + opts->set + uge_sum; 4792 int ldcsuge_sum = csuge_sum + opts->local + opts->descend; 4793 int all_sum = un ? ldcsuge_sum + opts->recursive : ldcsuge_sum; 4794 4795 if (uge_sum > 1) 4796 allow_usage(un, B_FALSE, 4797 gettext("-u, -g, and -e are mutually exclusive\n")); 4798 4799 if (opts->prt_usage) { 4800 if (argc == 0 && all_sum == 0) 4801 allow_usage(un, B_TRUE, NULL); 4802 else 4803 usage(B_FALSE); 4804 } 4805 4806 if (opts->set) { 4807 if (csuge_sum > 1) 4808 allow_usage(un, B_FALSE, 4809 gettext("invalid options combined with -s\n")); 4810 4811 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4812 if (argv[0][0] != '@') 4813 allow_usage(un, B_FALSE, 4814 gettext("invalid set name: missing '@' prefix\n")); 4815 opts->who = argv[0]; 4816 } else if (opts->create) { 4817 if (ldcsuge_sum > 1) 4818 allow_usage(un, B_FALSE, 4819 gettext("invalid options combined with -c\n")); 4820 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4821 } else if (opts->everyone) { 4822 if (csuge_sum > 1) 4823 allow_usage(un, B_FALSE, 4824 gettext("invalid options combined with -e\n")); 4825 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4826 } else if (uge_sum == 0 && argc > 0 && strcmp(argv[0], "everyone") 4827 == 0) { 4828 opts->everyone = B_TRUE; 4829 argc--; 4830 argv++; 4831 opts->dataset = munge_args(argc, argv, un, 2, &opts->perms); 4832 } else if (argc == 1 && !un) { 4833 opts->prt_perms = B_TRUE; 4834 opts->dataset = argv[argc-1]; 4835 } else { 4836 opts->dataset = munge_args(argc, argv, un, 3, &opts->perms); 4837 opts->who = argv[0]; 4838 } 4839 4840 if (!opts->local && !opts->descend) { 4841 opts->local = B_TRUE; 4842 opts->descend = B_TRUE; 4843 } 4844 } 4845 4846 static void 4847 store_allow_perm(zfs_deleg_who_type_t type, boolean_t local, boolean_t descend, 4848 const char *who, char *perms, nvlist_t *top_nvl) 4849 { 4850 int i; 4851 char ld[2] = { '\0', '\0' }; 4852 char who_buf[ZFS_MAXNAMELEN+32]; 4853 char base_type = '\0'; 4854 char set_type = '\0'; 4855 nvlist_t *base_nvl = NULL; 4856 nvlist_t *set_nvl = NULL; 4857 nvlist_t *nvl; 4858 4859 if (nvlist_alloc(&base_nvl, NV_UNIQUE_NAME, 0) != 0) 4860 nomem(); 4861 if (nvlist_alloc(&set_nvl, NV_UNIQUE_NAME, 0) != 0) 4862 nomem(); 4863 4864 switch (type) { 4865 case ZFS_DELEG_NAMED_SET_SETS: 4866 case ZFS_DELEG_NAMED_SET: 4867 set_type = ZFS_DELEG_NAMED_SET_SETS; 4868 base_type = ZFS_DELEG_NAMED_SET; 4869 ld[0] = ZFS_DELEG_NA; 4870 break; 4871 case ZFS_DELEG_CREATE_SETS: 4872 case ZFS_DELEG_CREATE: 4873 set_type = ZFS_DELEG_CREATE_SETS; 4874 base_type = ZFS_DELEG_CREATE; 4875 ld[0] = ZFS_DELEG_NA; 4876 break; 4877 case ZFS_DELEG_USER_SETS: 4878 case ZFS_DELEG_USER: 4879 set_type = ZFS_DELEG_USER_SETS; 4880 base_type = ZFS_DELEG_USER; 4881 if (local) 4882 ld[0] = ZFS_DELEG_LOCAL; 4883 if (descend) 4884 ld[1] = ZFS_DELEG_DESCENDENT; 4885 break; 4886 case ZFS_DELEG_GROUP_SETS: 4887 case ZFS_DELEG_GROUP: 4888 set_type = ZFS_DELEG_GROUP_SETS; 4889 base_type = ZFS_DELEG_GROUP; 4890 if (local) 4891 ld[0] = ZFS_DELEG_LOCAL; 4892 if (descend) 4893 ld[1] = ZFS_DELEG_DESCENDENT; 4894 break; 4895 case ZFS_DELEG_EVERYONE_SETS: 4896 case ZFS_DELEG_EVERYONE: 4897 set_type = ZFS_DELEG_EVERYONE_SETS; 4898 base_type = ZFS_DELEG_EVERYONE; 4899 if (local) 4900 ld[0] = ZFS_DELEG_LOCAL; 4901 if (descend) 4902 ld[1] = ZFS_DELEG_DESCENDENT; 4903 break; 4904 4905 default: 4906 assert(set_type != '\0' && base_type != '\0'); 4907 } 4908 4909 if (perms != NULL) { 4910 char *curr = perms; 4911 char *end = curr + strlen(perms); 4912 4913 while (curr < end) { 4914 char *delim = strchr(curr, ','); 4915 if (delim == NULL) 4916 delim = end; 4917 else 4918 *delim = '\0'; 4919 4920 if (curr[0] == '@') 4921 nvl = set_nvl; 4922 else 4923 nvl = base_nvl; 4924 4925 (void) nvlist_add_boolean(nvl, curr); 4926 if (delim != end) 4927 *delim = ','; 4928 curr = delim + 1; 4929 } 4930 4931 for (i = 0; i < 2; i++) { 4932 char locality = ld[i]; 4933 if (locality == 0) 4934 continue; 4935 4936 if (!nvlist_empty(base_nvl)) { 4937 if (who != NULL) 4938 (void) snprintf(who_buf, 4939 sizeof (who_buf), "%c%c$%s", 4940 base_type, locality, who); 4941 else 4942 (void) snprintf(who_buf, 4943 sizeof (who_buf), "%c%c$", 4944 base_type, locality); 4945 4946 (void) nvlist_add_nvlist(top_nvl, who_buf, 4947 base_nvl); 4948 } 4949 4950 4951 if (!nvlist_empty(set_nvl)) { 4952 if (who != NULL) 4953 (void) snprintf(who_buf, 4954 sizeof (who_buf), "%c%c$%s", 4955 set_type, locality, who); 4956 else 4957 (void) snprintf(who_buf, 4958 sizeof (who_buf), "%c%c$", 4959 set_type, locality); 4960 4961 (void) nvlist_add_nvlist(top_nvl, who_buf, 4962 set_nvl); 4963 } 4964 } 4965 } else { 4966 for (i = 0; i < 2; i++) { 4967 char locality = ld[i]; 4968 if (locality == 0) 4969 continue; 4970 4971 if (who != NULL) 4972 (void) snprintf(who_buf, sizeof (who_buf), 4973 "%c%c$%s", base_type, locality, who); 4974 else 4975 (void) snprintf(who_buf, sizeof (who_buf), 4976 "%c%c$", base_type, locality); 4977 (void) nvlist_add_boolean(top_nvl, who_buf); 4978 4979 if (who != NULL) 4980 (void) snprintf(who_buf, sizeof (who_buf), 4981 "%c%c$%s", set_type, locality, who); 4982 else 4983 (void) snprintf(who_buf, sizeof (who_buf), 4984 "%c%c$", set_type, locality); 4985 (void) nvlist_add_boolean(top_nvl, who_buf); 4986 } 4987 } 4988 } 4989 4990 static int 4991 construct_fsacl_list(boolean_t un, struct allow_opts *opts, nvlist_t **nvlp) 4992 { 4993 if (nvlist_alloc(nvlp, NV_UNIQUE_NAME, 0) != 0) 4994 nomem(); 4995 4996 if (opts->set) { 4997 store_allow_perm(ZFS_DELEG_NAMED_SET, opts->local, 4998 opts->descend, opts->who, opts->perms, *nvlp); 4999 } else if (opts->create) { 5000 store_allow_perm(ZFS_DELEG_CREATE, opts->local, 5001 opts->descend, NULL, opts->perms, *nvlp); 5002 } else if (opts->everyone) { 5003 store_allow_perm(ZFS_DELEG_EVERYONE, opts->local, 5004 opts->descend, NULL, opts->perms, *nvlp); 5005 } else { 5006 char *curr = opts->who; 5007 char *end = curr + strlen(curr); 5008 5009 while (curr < end) { 5010 const char *who; 5011 zfs_deleg_who_type_t who_type = ZFS_DELEG_WHO_UNKNOWN; 5012 char *endch; 5013 char *delim = strchr(curr, ','); 5014 char errbuf[256]; 5015 char id[64]; 5016 struct passwd *p = NULL; 5017 struct group *g = NULL; 5018 5019 uid_t rid; 5020 if (delim == NULL) 5021 delim = end; 5022 else 5023 *delim = '\0'; 5024 5025 rid = (uid_t)strtol(curr, &endch, 0); 5026 if (opts->user) { 5027 who_type = ZFS_DELEG_USER; 5028 if (*endch != '\0') 5029 p = getpwnam(curr); 5030 else 5031 p = getpwuid(rid); 5032 5033 if (p != NULL) 5034 rid = p->pw_uid; 5035 else { 5036 (void) snprintf(errbuf, 256, gettext( 5037 "invalid user %s"), curr); 5038 allow_usage(un, B_TRUE, errbuf); 5039 } 5040 } else if (opts->group) { 5041 who_type = ZFS_DELEG_GROUP; 5042 if (*endch != '\0') 5043 g = getgrnam(curr); 5044 else 5045 g = getgrgid(rid); 5046 5047 if (g != NULL) 5048 rid = g->gr_gid; 5049 else { 5050 (void) snprintf(errbuf, 256, gettext( 5051 "invalid group %s"), curr); 5052 allow_usage(un, B_TRUE, errbuf); 5053 } 5054 } else { 5055 if (*endch != '\0') { 5056 p = getpwnam(curr); 5057 } else { 5058 p = getpwuid(rid); 5059 } 5060 5061 if (p == NULL) { 5062 if (*endch != '\0') { 5063 g = getgrnam(curr); 5064 } else { 5065 g = getgrgid(rid); 5066 } 5067 } 5068 5069 if (p != NULL) { 5070 who_type = ZFS_DELEG_USER; 5071 rid = p->pw_uid; 5072 } else if (g != NULL) { 5073 who_type = ZFS_DELEG_GROUP; 5074 rid = g->gr_gid; 5075 } else { 5076 (void) snprintf(errbuf, 256, gettext( 5077 "invalid user/group %s"), curr); 5078 allow_usage(un, B_TRUE, errbuf); 5079 } 5080 } 5081 5082 (void) sprintf(id, "%u", rid); 5083 who = id; 5084 5085 store_allow_perm(who_type, opts->local, 5086 opts->descend, who, opts->perms, *nvlp); 5087 curr = delim + 1; 5088 } 5089 } 5090 5091 return (0); 5092 } 5093 5094 static void 5095 print_set_creat_perms(uu_avl_t *who_avl) 5096 { 5097 const char *sc_title[] = { 5098 gettext("Permission sets:\n"), 5099 gettext("Create time permissions:\n"), 5100 NULL 5101 }; 5102 const char **title_ptr = sc_title; 5103 who_perm_node_t *who_node = NULL; 5104 int prev_weight = -1; 5105 5106 for (who_node = uu_avl_first(who_avl); who_node != NULL; 5107 who_node = uu_avl_next(who_avl, who_node)) { 5108 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5109 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5110 const char *who_name = who_node->who_perm.who_name; 5111 int weight = who_type2weight(who_type); 5112 boolean_t first = B_TRUE; 5113 deleg_perm_node_t *deleg_node; 5114 5115 if (prev_weight != weight) { 5116 (void) printf(*title_ptr++); 5117 prev_weight = weight; 5118 } 5119 5120 if (who_name == NULL || strnlen(who_name, 1) == 0) 5121 (void) printf("\t"); 5122 else 5123 (void) printf("\t%s ", who_name); 5124 5125 for (deleg_node = uu_avl_first(avl); deleg_node != NULL; 5126 deleg_node = uu_avl_next(avl, deleg_node)) { 5127 if (first) { 5128 (void) printf("%s", 5129 deleg_node->dpn_perm.dp_name); 5130 first = B_FALSE; 5131 } else 5132 (void) printf(",%s", 5133 deleg_node->dpn_perm.dp_name); 5134 } 5135 5136 (void) printf("\n"); 5137 } 5138 } 5139 5140 static void 5141 print_uge_deleg_perms(uu_avl_t *who_avl, boolean_t local, boolean_t descend, 5142 const char *title) 5143 { 5144 who_perm_node_t *who_node = NULL; 5145 boolean_t prt_title = B_TRUE; 5146 uu_avl_walk_t *walk; 5147 5148 if ((walk = uu_avl_walk_start(who_avl, UU_WALK_ROBUST)) == NULL) 5149 nomem(); 5150 5151 while ((who_node = uu_avl_walk_next(walk)) != NULL) { 5152 const char *who_name = who_node->who_perm.who_name; 5153 const char *nice_who_name = who_node->who_perm.who_ug_name; 5154 uu_avl_t *avl = who_node->who_perm.who_deleg_perm_avl; 5155 zfs_deleg_who_type_t who_type = who_node->who_perm.who_type; 5156 char delim = ' '; 5157 deleg_perm_node_t *deleg_node; 5158 boolean_t prt_who = B_TRUE; 5159 5160 for (deleg_node = uu_avl_first(avl); 5161 deleg_node != NULL; 5162 deleg_node = uu_avl_next(avl, deleg_node)) { 5163 if (local != deleg_node->dpn_perm.dp_local || 5164 descend != deleg_node->dpn_perm.dp_descend) 5165 continue; 5166 5167 if (prt_who) { 5168 const char *who = NULL; 5169 if (prt_title) { 5170 prt_title = B_FALSE; 5171 (void) printf(title); 5172 } 5173 5174 switch (who_type) { 5175 case ZFS_DELEG_USER_SETS: 5176 case ZFS_DELEG_USER: 5177 who = gettext("user"); 5178 if (nice_who_name) 5179 who_name = nice_who_name; 5180 break; 5181 case ZFS_DELEG_GROUP_SETS: 5182 case ZFS_DELEG_GROUP: 5183 who = gettext("group"); 5184 if (nice_who_name) 5185 who_name = nice_who_name; 5186 break; 5187 case ZFS_DELEG_EVERYONE_SETS: 5188 case ZFS_DELEG_EVERYONE: 5189 who = gettext("everyone"); 5190 who_name = NULL; 5191 break; 5192 5193 default: 5194 assert(who != NULL); 5195 } 5196 5197 prt_who = B_FALSE; 5198 if (who_name == NULL) 5199 (void) printf("\t%s", who); 5200 else 5201 (void) printf("\t%s %s", who, who_name); 5202 } 5203 5204 (void) printf("%c%s", delim, 5205 deleg_node->dpn_perm.dp_name); 5206 delim = ','; 5207 } 5208 5209 if (!prt_who) 5210 (void) printf("\n"); 5211 } 5212 5213 uu_avl_walk_end(walk); 5214 } 5215 5216 static void 5217 print_fs_perms(fs_perm_set_t *fspset) 5218 { 5219 fs_perm_node_t *node = NULL; 5220 char buf[ZFS_MAXNAMELEN+32]; 5221 const char *dsname = buf; 5222 5223 for (node = uu_list_first(fspset->fsps_list); node != NULL; 5224 node = uu_list_next(fspset->fsps_list, node)) { 5225 uu_avl_t *sc_avl = node->fspn_fsperm.fsp_sc_avl; 5226 uu_avl_t *uge_avl = node->fspn_fsperm.fsp_uge_avl; 5227 int left = 0; 5228 5229 (void) snprintf(buf, ZFS_MAXNAMELEN+32, 5230 gettext("---- Permissions on %s "), 5231 node->fspn_fsperm.fsp_name); 5232 (void) printf(dsname); 5233 left = 70 - strlen(buf); 5234 while (left-- > 0) 5235 (void) printf("-"); 5236 (void) printf("\n"); 5237 5238 print_set_creat_perms(sc_avl); 5239 print_uge_deleg_perms(uge_avl, B_TRUE, B_FALSE, 5240 gettext("Local permissions:\n")); 5241 print_uge_deleg_perms(uge_avl, B_FALSE, B_TRUE, 5242 gettext("Descendent permissions:\n")); 5243 print_uge_deleg_perms(uge_avl, B_TRUE, B_TRUE, 5244 gettext("Local+Descendent permissions:\n")); 5245 } 5246 } 5247 5248 static fs_perm_set_t fs_perm_set = { NULL, NULL, NULL, NULL }; 5249 5250 struct deleg_perms { 5251 boolean_t un; 5252 nvlist_t *nvl; 5253 }; 5254 5255 static int 5256 set_deleg_perms(zfs_handle_t *zhp, void *data) 5257 { 5258 struct deleg_perms *perms = (struct deleg_perms *)data; 5259 zfs_type_t zfs_type = zfs_get_type(zhp); 5260 5261 if (zfs_type != ZFS_TYPE_FILESYSTEM && zfs_type != ZFS_TYPE_VOLUME) 5262 return (0); 5263 5264 return (zfs_set_fsacl(zhp, perms->un, perms->nvl)); 5265 } 5266 5267 static int 5268 zfs_do_allow_unallow_impl(int argc, char **argv, boolean_t un) 5269 { 5270 zfs_handle_t *zhp; 5271 nvlist_t *perm_nvl = NULL; 5272 nvlist_t *update_perm_nvl = NULL; 5273 int error = 1; 5274 int c; 5275 struct allow_opts opts = { 0 }; 5276 5277 const char *optstr = un ? "ldugecsrh" : "ldugecsh"; 5278 5279 /* check opts */ 5280 while ((c = getopt(argc, argv, optstr)) != -1) { 5281 switch (c) { 5282 case 'l': 5283 opts.local = B_TRUE; 5284 break; 5285 case 'd': 5286 opts.descend = B_TRUE; 5287 break; 5288 case 'u': 5289 opts.user = B_TRUE; 5290 break; 5291 case 'g': 5292 opts.group = B_TRUE; 5293 break; 5294 case 'e': 5295 opts.everyone = B_TRUE; 5296 break; 5297 case 's': 5298 opts.set = B_TRUE; 5299 break; 5300 case 'c': 5301 opts.create = B_TRUE; 5302 break; 5303 case 'r': 5304 opts.recursive = B_TRUE; 5305 break; 5306 case ':': 5307 (void) fprintf(stderr, gettext("missing argument for " 5308 "'%c' option\n"), optopt); 5309 usage(B_FALSE); 5310 break; 5311 case 'h': 5312 opts.prt_usage = B_TRUE; 5313 break; 5314 case '?': 5315 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5316 optopt); 5317 usage(B_FALSE); 5318 } 5319 } 5320 5321 argc -= optind; 5322 argv += optind; 5323 5324 /* check arguments */ 5325 parse_allow_args(argc, argv, un, &opts); 5326 5327 /* try to open the dataset */ 5328 if ((zhp = zfs_open(g_zfs, opts.dataset, ZFS_TYPE_FILESYSTEM | 5329 ZFS_TYPE_VOLUME)) == NULL) { 5330 (void) fprintf(stderr, "Failed to open dataset: %s\n", 5331 opts.dataset); 5332 return (-1); 5333 } 5334 5335 if (zfs_get_fsacl(zhp, &perm_nvl) != 0) 5336 goto cleanup2; 5337 5338 fs_perm_set_init(&fs_perm_set); 5339 if (parse_fs_perm_set(&fs_perm_set, perm_nvl) != 0) { 5340 (void) fprintf(stderr, "Failed to parse fsacl permissions\n"); 5341 goto cleanup1; 5342 } 5343 5344 if (opts.prt_perms) 5345 print_fs_perms(&fs_perm_set); 5346 else { 5347 (void) construct_fsacl_list(un, &opts, &update_perm_nvl); 5348 if (zfs_set_fsacl(zhp, un, update_perm_nvl) != 0) 5349 goto cleanup0; 5350 5351 if (un && opts.recursive) { 5352 struct deleg_perms data = { un, update_perm_nvl }; 5353 if (zfs_iter_filesystems(zhp, set_deleg_perms, 5354 &data) != 0) 5355 goto cleanup0; 5356 } 5357 } 5358 5359 error = 0; 5360 5361 cleanup0: 5362 nvlist_free(perm_nvl); 5363 nvlist_free(update_perm_nvl); 5364 cleanup1: 5365 fs_perm_set_fini(&fs_perm_set); 5366 cleanup2: 5367 zfs_close(zhp); 5368 5369 return (error); 5370 } 5371 5372 static int 5373 zfs_do_allow(int argc, char **argv) 5374 { 5375 return (zfs_do_allow_unallow_impl(argc, argv, B_FALSE)); 5376 } 5377 5378 static int 5379 zfs_do_unallow(int argc, char **argv) 5380 { 5381 return (zfs_do_allow_unallow_impl(argc, argv, B_TRUE)); 5382 } 5383 5384 static int 5385 zfs_do_hold_rele_impl(int argc, char **argv, boolean_t holding) 5386 { 5387 int errors = 0; 5388 int i; 5389 const char *tag; 5390 boolean_t recursive = B_FALSE; 5391 const char *opts = holding ? "rt" : "r"; 5392 int c; 5393 5394 /* check options */ 5395 while ((c = getopt(argc, argv, opts)) != -1) { 5396 switch (c) { 5397 case 'r': 5398 recursive = B_TRUE; 5399 break; 5400 case '?': 5401 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5402 optopt); 5403 usage(B_FALSE); 5404 } 5405 } 5406 5407 argc -= optind; 5408 argv += optind; 5409 5410 /* check number of arguments */ 5411 if (argc < 2) 5412 usage(B_FALSE); 5413 5414 tag = argv[0]; 5415 --argc; 5416 ++argv; 5417 5418 if (holding && tag[0] == '.') { 5419 /* tags starting with '.' are reserved for libzfs */ 5420 (void) fprintf(stderr, gettext("tag may not start with '.'\n")); 5421 usage(B_FALSE); 5422 } 5423 5424 for (i = 0; i < argc; ++i) { 5425 zfs_handle_t *zhp; 5426 char parent[ZFS_MAXNAMELEN]; 5427 const char *delim; 5428 char *path = argv[i]; 5429 5430 delim = strchr(path, '@'); 5431 if (delim == NULL) { 5432 (void) fprintf(stderr, 5433 gettext("'%s' is not a snapshot\n"), path); 5434 ++errors; 5435 continue; 5436 } 5437 (void) strncpy(parent, path, delim - path); 5438 parent[delim - path] = '\0'; 5439 5440 zhp = zfs_open(g_zfs, parent, 5441 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME); 5442 if (zhp == NULL) { 5443 ++errors; 5444 continue; 5445 } 5446 if (holding) { 5447 if (zfs_hold(zhp, delim+1, tag, recursive, -1) != 0) 5448 ++errors; 5449 } else { 5450 if (zfs_release(zhp, delim+1, tag, recursive) != 0) 5451 ++errors; 5452 } 5453 zfs_close(zhp); 5454 } 5455 5456 return (errors != 0); 5457 } 5458 5459 /* 5460 * zfs hold [-r] [-t] <tag> <snap> ... 5461 * 5462 * -r Recursively hold 5463 * 5464 * Apply a user-hold with the given tag to the list of snapshots. 5465 */ 5466 static int 5467 zfs_do_hold(int argc, char **argv) 5468 { 5469 return (zfs_do_hold_rele_impl(argc, argv, B_TRUE)); 5470 } 5471 5472 /* 5473 * zfs release [-r] <tag> <snap> ... 5474 * 5475 * -r Recursively release 5476 * 5477 * Release a user-hold with the given tag from the list of snapshots. 5478 */ 5479 static int 5480 zfs_do_release(int argc, char **argv) 5481 { 5482 return (zfs_do_hold_rele_impl(argc, argv, B_FALSE)); 5483 } 5484 5485 typedef struct holds_cbdata { 5486 boolean_t cb_recursive; 5487 const char *cb_snapname; 5488 nvlist_t **cb_nvlp; 5489 size_t cb_max_namelen; 5490 size_t cb_max_taglen; 5491 } holds_cbdata_t; 5492 5493 #define STRFTIME_FMT_STR "%a %b %e %k:%M %Y" 5494 #define DATETIME_BUF_LEN (32) 5495 /* 5496 * 5497 */ 5498 static void 5499 print_holds(boolean_t scripted, size_t nwidth, size_t tagwidth, nvlist_t *nvl) 5500 { 5501 int i; 5502 nvpair_t *nvp = NULL; 5503 char *hdr_cols[] = { "NAME", "TAG", "TIMESTAMP" }; 5504 const char *col; 5505 5506 if (!scripted) { 5507 for (i = 0; i < 3; i++) { 5508 col = gettext(hdr_cols[i]); 5509 if (i < 2) 5510 (void) printf("%-*s ", i ? tagwidth : nwidth, 5511 col); 5512 else 5513 (void) printf("%s\n", col); 5514 } 5515 } 5516 5517 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5518 char *zname = nvpair_name(nvp); 5519 nvlist_t *nvl2; 5520 nvpair_t *nvp2 = NULL; 5521 (void) nvpair_value_nvlist(nvp, &nvl2); 5522 while ((nvp2 = nvlist_next_nvpair(nvl2, nvp2)) != NULL) { 5523 char tsbuf[DATETIME_BUF_LEN]; 5524 char *tagname = nvpair_name(nvp2); 5525 uint64_t val = 0; 5526 time_t time; 5527 struct tm t; 5528 char sep = scripted ? '\t' : ' '; 5529 size_t sepnum = scripted ? 1 : 2; 5530 5531 (void) nvpair_value_uint64(nvp2, &val); 5532 time = (time_t)val; 5533 (void) localtime_r(&time, &t); 5534 (void) strftime(tsbuf, DATETIME_BUF_LEN, 5535 gettext(STRFTIME_FMT_STR), &t); 5536 5537 (void) printf("%-*s%*c%-*s%*c%s\n", nwidth, zname, 5538 sepnum, sep, tagwidth, tagname, sepnum, sep, tsbuf); 5539 } 5540 } 5541 } 5542 5543 /* 5544 * Generic callback function to list a dataset or snapshot. 5545 */ 5546 static int 5547 holds_callback(zfs_handle_t *zhp, void *data) 5548 { 5549 holds_cbdata_t *cbp = data; 5550 nvlist_t *top_nvl = *cbp->cb_nvlp; 5551 nvlist_t *nvl = NULL; 5552 nvpair_t *nvp = NULL; 5553 const char *zname = zfs_get_name(zhp); 5554 size_t znamelen = strnlen(zname, ZFS_MAXNAMELEN); 5555 5556 if (cbp->cb_recursive) { 5557 const char *snapname; 5558 char *delim = strchr(zname, '@'); 5559 if (delim == NULL) 5560 return (0); 5561 5562 snapname = delim + 1; 5563 if (strcmp(cbp->cb_snapname, snapname)) 5564 return (0); 5565 } 5566 5567 if (zfs_get_holds(zhp, &nvl) != 0) 5568 return (-1); 5569 5570 if (znamelen > cbp->cb_max_namelen) 5571 cbp->cb_max_namelen = znamelen; 5572 5573 while ((nvp = nvlist_next_nvpair(nvl, nvp)) != NULL) { 5574 const char *tag = nvpair_name(nvp); 5575 size_t taglen = strnlen(tag, MAXNAMELEN); 5576 if (taglen > cbp->cb_max_taglen) 5577 cbp->cb_max_taglen = taglen; 5578 } 5579 5580 return (nvlist_add_nvlist(top_nvl, zname, nvl)); 5581 } 5582 5583 /* 5584 * zfs holds [-r] <snap> ... 5585 * 5586 * -r Recursively hold 5587 */ 5588 static int 5589 zfs_do_holds(int argc, char **argv) 5590 { 5591 int errors = 0; 5592 int c; 5593 int i; 5594 boolean_t scripted = B_FALSE; 5595 boolean_t recursive = B_FALSE; 5596 const char *opts = "rH"; 5597 nvlist_t *nvl; 5598 5599 int types = ZFS_TYPE_SNAPSHOT; 5600 holds_cbdata_t cb = { 0 }; 5601 5602 int limit = 0; 5603 int ret = 0; 5604 int flags = 0; 5605 5606 /* check options */ 5607 while ((c = getopt(argc, argv, opts)) != -1) { 5608 switch (c) { 5609 case 'r': 5610 recursive = B_TRUE; 5611 break; 5612 case 'H': 5613 scripted = B_TRUE; 5614 break; 5615 case '?': 5616 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 5617 optopt); 5618 usage(B_FALSE); 5619 } 5620 } 5621 5622 if (recursive) { 5623 types |= ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME; 5624 flags |= ZFS_ITER_RECURSE; 5625 } 5626 5627 argc -= optind; 5628 argv += optind; 5629 5630 /* check number of arguments */ 5631 if (argc < 1) 5632 usage(B_FALSE); 5633 5634 if (nvlist_alloc(&nvl, NV_UNIQUE_NAME, 0) != 0) 5635 nomem(); 5636 5637 for (i = 0; i < argc; ++i) { 5638 char *snapshot = argv[i]; 5639 const char *delim; 5640 const char *snapname; 5641 5642 delim = strchr(snapshot, '@'); 5643 if (delim == NULL) { 5644 (void) fprintf(stderr, 5645 gettext("'%s' is not a snapshot\n"), snapshot); 5646 ++errors; 5647 continue; 5648 } 5649 snapname = delim + 1; 5650 if (recursive) 5651 snapshot[delim - snapshot] = '\0'; 5652 5653 cb.cb_recursive = recursive; 5654 cb.cb_snapname = snapname; 5655 cb.cb_nvlp = &nvl; 5656 5657 /* 5658 * 1. collect holds data, set format options 5659 */ 5660 ret = zfs_for_each(argc, argv, flags, types, NULL, NULL, limit, 5661 holds_callback, &cb); 5662 if (ret != 0) 5663 ++errors; 5664 } 5665 5666 /* 5667 * 2. print holds data 5668 */ 5669 print_holds(scripted, cb.cb_max_namelen, cb.cb_max_taglen, nvl); 5670 5671 if (nvlist_empty(nvl)) 5672 (void) printf(gettext("no datasets available\n")); 5673 5674 nvlist_free(nvl); 5675 5676 return (0 != errors); 5677 } 5678 5679 #define CHECK_SPINNER 30 5680 #define SPINNER_TIME 3 /* seconds */ 5681 #define MOUNT_TIME 5 /* seconds */ 5682 5683 static int 5684 get_one_dataset(zfs_handle_t *zhp, void *data) 5685 { 5686 static char *spin[] = { "-", "\\", "|", "/" }; 5687 static int spinval = 0; 5688 static int spincheck = 0; 5689 static time_t last_spin_time = (time_t)0; 5690 get_all_cb_t *cbp = data; 5691 zfs_type_t type = zfs_get_type(zhp); 5692 5693 if (cbp->cb_verbose) { 5694 if (--spincheck < 0) { 5695 time_t now = time(NULL); 5696 if (last_spin_time + SPINNER_TIME < now) { 5697 update_progress(spin[spinval++ % 4]); 5698 last_spin_time = now; 5699 } 5700 spincheck = CHECK_SPINNER; 5701 } 5702 } 5703 5704 /* 5705 * Interate over any nested datasets. 5706 */ 5707 if (zfs_iter_filesystems(zhp, get_one_dataset, data) != 0) { 5708 zfs_close(zhp); 5709 return (1); 5710 } 5711 5712 /* 5713 * Skip any datasets whose type does not match. 5714 */ 5715 if ((type & ZFS_TYPE_FILESYSTEM) == 0) { 5716 zfs_close(zhp); 5717 return (0); 5718 } 5719 libzfs_add_handle(cbp, zhp); 5720 assert(cbp->cb_used <= cbp->cb_alloc); 5721 5722 return (0); 5723 } 5724 5725 static void 5726 get_all_datasets(zfs_handle_t ***dslist, size_t *count, boolean_t verbose) 5727 { 5728 get_all_cb_t cb = { 0 }; 5729 cb.cb_verbose = verbose; 5730 cb.cb_getone = get_one_dataset; 5731 5732 if (verbose) 5733 set_progress_header(gettext("Reading ZFS config")); 5734 (void) zfs_iter_root(g_zfs, get_one_dataset, &cb); 5735 5736 *dslist = cb.cb_handles; 5737 *count = cb.cb_used; 5738 5739 if (verbose) 5740 finish_progress(gettext("done.")); 5741 } 5742 5743 /* 5744 * Generic callback for sharing or mounting filesystems. Because the code is so 5745 * similar, we have a common function with an extra parameter to determine which 5746 * mode we are using. 5747 */ 5748 #define OP_SHARE 0x1 5749 #define OP_MOUNT 0x2 5750 5751 /* 5752 * Share or mount a dataset. 5753 */ 5754 static int 5755 share_mount_one(zfs_handle_t *zhp, int op, int flags, char *protocol, 5756 boolean_t explicit, const char *options) 5757 { 5758 char mountpoint[ZFS_MAXPROPLEN]; 5759 char shareopts[ZFS_MAXPROPLEN]; 5760 char smbshareopts[ZFS_MAXPROPLEN]; 5761 const char *cmdname = op == OP_SHARE ? "share" : "mount"; 5762 struct mnttab mnt; 5763 uint64_t zoned, canmount; 5764 boolean_t shared_nfs, shared_smb; 5765 5766 assert(zfs_get_type(zhp) & ZFS_TYPE_FILESYSTEM); 5767 5768 /* 5769 * Check to make sure we can mount/share this dataset. If we 5770 * are in the global zone and the filesystem is exported to a 5771 * local zone, or if we are in a local zone and the 5772 * filesystem is not exported, then it is an error. 5773 */ 5774 zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED); 5775 5776 if (zoned && getzoneid() == GLOBAL_ZONEID) { 5777 if (!explicit) 5778 return (0); 5779 5780 (void) fprintf(stderr, gettext("cannot %s '%s': " 5781 "dataset is exported to a local zone\n"), cmdname, 5782 zfs_get_name(zhp)); 5783 return (1); 5784 5785 } else if (!zoned && getzoneid() != GLOBAL_ZONEID) { 5786 if (!explicit) 5787 return (0); 5788 5789 (void) fprintf(stderr, gettext("cannot %s '%s': " 5790 "permission denied\n"), cmdname, 5791 zfs_get_name(zhp)); 5792 return (1); 5793 } 5794 5795 /* 5796 * Ignore any filesystems which don't apply to us. This 5797 * includes those with a legacy mountpoint, or those with 5798 * legacy share options. 5799 */ 5800 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 5801 sizeof (mountpoint), NULL, NULL, 0, B_FALSE) == 0); 5802 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, shareopts, 5803 sizeof (shareopts), NULL, NULL, 0, B_FALSE) == 0); 5804 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshareopts, 5805 sizeof (smbshareopts), NULL, NULL, 0, B_FALSE) == 0); 5806 5807 if (op == OP_SHARE && strcmp(shareopts, "off") == 0 && 5808 strcmp(smbshareopts, "off") == 0) { 5809 if (!explicit) 5810 return (0); 5811 5812 (void) fprintf(stderr, gettext("cannot share '%s': " 5813 "legacy share\n"), zfs_get_name(zhp)); 5814 (void) fprintf(stderr, gettext("use share(1M) to " 5815 "share this filesystem, or set " 5816 "sharenfs property on\n")); 5817 return (1); 5818 } 5819 5820 /* 5821 * We cannot share or mount legacy filesystems. If the 5822 * shareopts is non-legacy but the mountpoint is legacy, we 5823 * treat it as a legacy share. 5824 */ 5825 if (strcmp(mountpoint, "legacy") == 0) { 5826 if (!explicit) 5827 return (0); 5828 5829 (void) fprintf(stderr, gettext("cannot %s '%s': " 5830 "legacy mountpoint\n"), cmdname, zfs_get_name(zhp)); 5831 (void) fprintf(stderr, gettext("use %s(1M) to " 5832 "%s this filesystem\n"), cmdname, cmdname); 5833 return (1); 5834 } 5835 5836 if (strcmp(mountpoint, "none") == 0) { 5837 if (!explicit) 5838 return (0); 5839 5840 (void) fprintf(stderr, gettext("cannot %s '%s': no " 5841 "mountpoint set\n"), cmdname, zfs_get_name(zhp)); 5842 return (1); 5843 } 5844 5845 /* 5846 * canmount explicit outcome 5847 * on no pass through 5848 * on yes pass through 5849 * off no return 0 5850 * off yes display error, return 1 5851 * noauto no return 0 5852 * noauto yes pass through 5853 */ 5854 canmount = zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT); 5855 if (canmount == ZFS_CANMOUNT_OFF) { 5856 if (!explicit) 5857 return (0); 5858 5859 (void) fprintf(stderr, gettext("cannot %s '%s': " 5860 "'canmount' property is set to 'off'\n"), cmdname, 5861 zfs_get_name(zhp)); 5862 return (1); 5863 } else if (canmount == ZFS_CANMOUNT_NOAUTO && !explicit) { 5864 return (0); 5865 } 5866 5867 /* 5868 * If this filesystem is inconsistent and has a receive resume 5869 * token, we can not mount it. 5870 */ 5871 if (zfs_prop_get_int(zhp, ZFS_PROP_INCONSISTENT) && 5872 zfs_prop_get(zhp, ZFS_PROP_RECEIVE_RESUME_TOKEN, 5873 NULL, 0, NULL, NULL, 0, B_TRUE) == 0) { 5874 if (!explicit) 5875 return (0); 5876 5877 (void) fprintf(stderr, gettext("cannot %s '%s': " 5878 "Contains partially-completed state from " 5879 "\"zfs receive -r\", which can be resumed with " 5880 "\"zfs send -t\"\n"), 5881 cmdname, zfs_get_name(zhp)); 5882 return (1); 5883 } 5884 5885 /* 5886 * At this point, we have verified that the mountpoint and/or 5887 * shareopts are appropriate for auto management. If the 5888 * filesystem is already mounted or shared, return (failing 5889 * for explicit requests); otherwise mount or share the 5890 * filesystem. 5891 */ 5892 switch (op) { 5893 case OP_SHARE: 5894 5895 shared_nfs = zfs_is_shared_nfs(zhp, NULL); 5896 shared_smb = zfs_is_shared_smb(zhp, NULL); 5897 5898 if ((shared_nfs && shared_smb) || 5899 (shared_nfs && strcmp(shareopts, "on") == 0 && 5900 strcmp(smbshareopts, "off") == 0) || 5901 (shared_smb && strcmp(smbshareopts, "on") == 0 && 5902 strcmp(shareopts, "off") == 0)) { 5903 if (!explicit) 5904 return (0); 5905 5906 (void) fprintf(stderr, gettext("cannot share " 5907 "'%s': filesystem already shared\n"), 5908 zfs_get_name(zhp)); 5909 return (1); 5910 } 5911 5912 if (!zfs_is_mounted(zhp, NULL) && 5913 zfs_mount(zhp, NULL, 0) != 0) 5914 return (1); 5915 5916 if (protocol == NULL) { 5917 if (zfs_shareall(zhp) != 0) 5918 return (1); 5919 } else if (strcmp(protocol, "nfs") == 0) { 5920 if (zfs_share_nfs(zhp)) 5921 return (1); 5922 } else if (strcmp(protocol, "smb") == 0) { 5923 if (zfs_share_smb(zhp)) 5924 return (1); 5925 } else { 5926 (void) fprintf(stderr, gettext("cannot share " 5927 "'%s': invalid share type '%s' " 5928 "specified\n"), 5929 zfs_get_name(zhp), protocol); 5930 return (1); 5931 } 5932 5933 break; 5934 5935 case OP_MOUNT: 5936 if (options == NULL) 5937 mnt.mnt_mntopts = ""; 5938 else 5939 mnt.mnt_mntopts = (char *)options; 5940 5941 if (!hasmntopt(&mnt, MNTOPT_REMOUNT) && 5942 zfs_is_mounted(zhp, NULL)) { 5943 if (!explicit) 5944 return (0); 5945 5946 (void) fprintf(stderr, gettext("cannot mount " 5947 "'%s': filesystem already mounted\n"), 5948 zfs_get_name(zhp)); 5949 return (1); 5950 } 5951 5952 if (zfs_mount(zhp, options, flags) != 0) 5953 return (1); 5954 break; 5955 } 5956 5957 return (0); 5958 } 5959 5960 /* 5961 * Reports progress in the form "(current/total)". Not thread-safe. 5962 */ 5963 static void 5964 report_mount_progress(int current, int total) 5965 { 5966 static time_t last_progress_time = 0; 5967 time_t now = time(NULL); 5968 char info[32]; 5969 5970 /* report 1..n instead of 0..n-1 */ 5971 ++current; 5972 5973 /* display header if we're here for the first time */ 5974 if (current == 1) { 5975 set_progress_header(gettext("Mounting ZFS filesystems")); 5976 } else if (current != total && last_progress_time + MOUNT_TIME >= now) { 5977 /* too soon to report again */ 5978 return; 5979 } 5980 5981 last_progress_time = now; 5982 5983 (void) sprintf(info, "(%d/%d)", current, total); 5984 5985 if (current == total) 5986 finish_progress(info); 5987 else 5988 update_progress(info); 5989 } 5990 5991 static void 5992 append_options(char *mntopts, char *newopts) 5993 { 5994 int len = strlen(mntopts); 5995 5996 /* original length plus new string to append plus 1 for the comma */ 5997 if (len + 1 + strlen(newopts) >= MNT_LINE_MAX) { 5998 (void) fprintf(stderr, gettext("the opts argument for " 5999 "'%c' option is too long (more than %d chars)\n"), 6000 "-o", MNT_LINE_MAX); 6001 usage(B_FALSE); 6002 } 6003 6004 if (*mntopts) 6005 mntopts[len++] = ','; 6006 6007 (void) strcpy(&mntopts[len], newopts); 6008 } 6009 6010 static int 6011 share_mount(int op, int argc, char **argv) 6012 { 6013 int do_all = 0; 6014 boolean_t verbose = B_FALSE; 6015 int c, ret = 0; 6016 char *options = NULL; 6017 int flags = 0; 6018 6019 /* check options */ 6020 while ((c = getopt(argc, argv, op == OP_MOUNT ? ":avo:O" : "a")) 6021 != -1) { 6022 switch (c) { 6023 case 'a': 6024 do_all = 1; 6025 break; 6026 case 'v': 6027 verbose = B_TRUE; 6028 break; 6029 case 'o': 6030 if (*optarg == '\0') { 6031 (void) fprintf(stderr, gettext("empty mount " 6032 "options (-o) specified\n")); 6033 usage(B_FALSE); 6034 } 6035 6036 if (options == NULL) 6037 options = safe_malloc(MNT_LINE_MAX + 1); 6038 6039 /* option validation is done later */ 6040 append_options(options, optarg); 6041 break; 6042 6043 case 'O': 6044 flags |= MS_OVERLAY; 6045 break; 6046 case ':': 6047 (void) fprintf(stderr, gettext("missing argument for " 6048 "'%c' option\n"), optopt); 6049 usage(B_FALSE); 6050 break; 6051 case '?': 6052 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6053 optopt); 6054 usage(B_FALSE); 6055 } 6056 } 6057 6058 argc -= optind; 6059 argv += optind; 6060 6061 /* check number of arguments */ 6062 if (do_all) { 6063 zfs_handle_t **dslist = NULL; 6064 size_t i, count = 0; 6065 char *protocol = NULL; 6066 6067 if (op == OP_SHARE && argc > 0) { 6068 if (strcmp(argv[0], "nfs") != 0 && 6069 strcmp(argv[0], "smb") != 0) { 6070 (void) fprintf(stderr, gettext("share type " 6071 "must be 'nfs' or 'smb'\n")); 6072 usage(B_FALSE); 6073 } 6074 protocol = argv[0]; 6075 argc--; 6076 argv++; 6077 } 6078 6079 if (argc != 0) { 6080 (void) fprintf(stderr, gettext("too many arguments\n")); 6081 usage(B_FALSE); 6082 } 6083 6084 start_progress_timer(); 6085 get_all_datasets(&dslist, &count, verbose); 6086 6087 if (count == 0) 6088 return (0); 6089 6090 qsort(dslist, count, sizeof (void *), libzfs_dataset_cmp); 6091 6092 for (i = 0; i < count; i++) { 6093 if (verbose) 6094 report_mount_progress(i, count); 6095 6096 if (share_mount_one(dslist[i], op, flags, protocol, 6097 B_FALSE, options) != 0) 6098 ret = 1; 6099 zfs_close(dslist[i]); 6100 } 6101 6102 free(dslist); 6103 } else if (argc == 0) { 6104 struct mnttab entry; 6105 6106 if ((op == OP_SHARE) || (options != NULL)) { 6107 (void) fprintf(stderr, gettext("missing filesystem " 6108 "argument (specify -a for all)\n")); 6109 usage(B_FALSE); 6110 } 6111 6112 /* 6113 * When mount is given no arguments, go through /etc/mnttab and 6114 * display any active ZFS mounts. We hide any snapshots, since 6115 * they are controlled automatically. 6116 */ 6117 rewind(mnttab_file); 6118 while (getmntent(mnttab_file, &entry) == 0) { 6119 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0 || 6120 strchr(entry.mnt_special, '@') != NULL) 6121 continue; 6122 6123 (void) printf("%-30s %s\n", entry.mnt_special, 6124 entry.mnt_mountp); 6125 } 6126 6127 } else { 6128 zfs_handle_t *zhp; 6129 6130 if (argc > 1) { 6131 (void) fprintf(stderr, 6132 gettext("too many arguments\n")); 6133 usage(B_FALSE); 6134 } 6135 6136 if ((zhp = zfs_open(g_zfs, argv[0], 6137 ZFS_TYPE_FILESYSTEM)) == NULL) { 6138 ret = 1; 6139 } else { 6140 ret = share_mount_one(zhp, op, flags, NULL, B_TRUE, 6141 options); 6142 zfs_close(zhp); 6143 } 6144 } 6145 6146 return (ret); 6147 } 6148 6149 /* 6150 * zfs mount -a [nfs] 6151 * zfs mount filesystem 6152 * 6153 * Mount all filesystems, or mount the given filesystem. 6154 */ 6155 static int 6156 zfs_do_mount(int argc, char **argv) 6157 { 6158 return (share_mount(OP_MOUNT, argc, argv)); 6159 } 6160 6161 /* 6162 * zfs share -a [nfs | smb] 6163 * zfs share filesystem 6164 * 6165 * Share all filesystems, or share the given filesystem. 6166 */ 6167 static int 6168 zfs_do_share(int argc, char **argv) 6169 { 6170 return (share_mount(OP_SHARE, argc, argv)); 6171 } 6172 6173 typedef struct unshare_unmount_node { 6174 zfs_handle_t *un_zhp; 6175 char *un_mountp; 6176 uu_avl_node_t un_avlnode; 6177 } unshare_unmount_node_t; 6178 6179 /* ARGSUSED */ 6180 static int 6181 unshare_unmount_compare(const void *larg, const void *rarg, void *unused) 6182 { 6183 const unshare_unmount_node_t *l = larg; 6184 const unshare_unmount_node_t *r = rarg; 6185 6186 return (strcmp(l->un_mountp, r->un_mountp)); 6187 } 6188 6189 /* 6190 * Convenience routine used by zfs_do_umount() and manual_unmount(). Given an 6191 * absolute path, find the entry /etc/mnttab, verify that its a ZFS filesystem, 6192 * and unmount it appropriately. 6193 */ 6194 static int 6195 unshare_unmount_path(int op, char *path, int flags, boolean_t is_manual) 6196 { 6197 zfs_handle_t *zhp; 6198 int ret = 0; 6199 struct stat64 statbuf; 6200 struct extmnttab entry; 6201 const char *cmdname = (op == OP_SHARE) ? "unshare" : "unmount"; 6202 ino_t path_inode; 6203 6204 /* 6205 * Search for the path in /etc/mnttab. Rather than looking for the 6206 * specific path, which can be fooled by non-standard paths (i.e. ".." 6207 * or "//"), we stat() the path and search for the corresponding 6208 * (major,minor) device pair. 6209 */ 6210 if (stat64(path, &statbuf) != 0) { 6211 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6212 cmdname, path, strerror(errno)); 6213 return (1); 6214 } 6215 path_inode = statbuf.st_ino; 6216 6217 /* 6218 * Search for the given (major,minor) pair in the mount table. 6219 */ 6220 rewind(mnttab_file); 6221 while ((ret = getextmntent(mnttab_file, &entry, 0)) == 0) { 6222 if (entry.mnt_major == major(statbuf.st_dev) && 6223 entry.mnt_minor == minor(statbuf.st_dev)) 6224 break; 6225 } 6226 if (ret != 0) { 6227 if (op == OP_SHARE) { 6228 (void) fprintf(stderr, gettext("cannot %s '%s': not " 6229 "currently mounted\n"), cmdname, path); 6230 return (1); 6231 } 6232 (void) fprintf(stderr, gettext("warning: %s not in mnttab\n"), 6233 path); 6234 if ((ret = umount2(path, flags)) != 0) 6235 (void) fprintf(stderr, gettext("%s: %s\n"), path, 6236 strerror(errno)); 6237 return (ret != 0); 6238 } 6239 6240 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) { 6241 (void) fprintf(stderr, gettext("cannot %s '%s': not a ZFS " 6242 "filesystem\n"), cmdname, path); 6243 return (1); 6244 } 6245 6246 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6247 ZFS_TYPE_FILESYSTEM)) == NULL) 6248 return (1); 6249 6250 ret = 1; 6251 if (stat64(entry.mnt_mountp, &statbuf) != 0) { 6252 (void) fprintf(stderr, gettext("cannot %s '%s': %s\n"), 6253 cmdname, path, strerror(errno)); 6254 goto out; 6255 } else if (statbuf.st_ino != path_inode) { 6256 (void) fprintf(stderr, gettext("cannot " 6257 "%s '%s': not a mountpoint\n"), cmdname, path); 6258 goto out; 6259 } 6260 6261 if (op == OP_SHARE) { 6262 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6263 char smbshare_prop[ZFS_MAXPROPLEN]; 6264 6265 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, nfs_mnt_prop, 6266 sizeof (nfs_mnt_prop), NULL, NULL, 0, B_FALSE) == 0); 6267 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, smbshare_prop, 6268 sizeof (smbshare_prop), NULL, NULL, 0, B_FALSE) == 0); 6269 6270 if (strcmp(nfs_mnt_prop, "off") == 0 && 6271 strcmp(smbshare_prop, "off") == 0) { 6272 (void) fprintf(stderr, gettext("cannot unshare " 6273 "'%s': legacy share\n"), path); 6274 (void) fprintf(stderr, gettext("use " 6275 "unshare(1M) to unshare this filesystem\n")); 6276 } else if (!zfs_is_shared(zhp)) { 6277 (void) fprintf(stderr, gettext("cannot unshare '%s': " 6278 "not currently shared\n"), path); 6279 } else { 6280 ret = zfs_unshareall_bypath(zhp, path); 6281 } 6282 } else { 6283 char mtpt_prop[ZFS_MAXPROPLEN]; 6284 6285 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mtpt_prop, 6286 sizeof (mtpt_prop), NULL, NULL, 0, B_FALSE) == 0); 6287 6288 if (is_manual) { 6289 ret = zfs_unmount(zhp, NULL, flags); 6290 } else if (strcmp(mtpt_prop, "legacy") == 0) { 6291 (void) fprintf(stderr, gettext("cannot unmount " 6292 "'%s': legacy mountpoint\n"), 6293 zfs_get_name(zhp)); 6294 (void) fprintf(stderr, gettext("use umount(1M) " 6295 "to unmount this filesystem\n")); 6296 } else { 6297 ret = zfs_unmountall(zhp, flags); 6298 } 6299 } 6300 6301 out: 6302 zfs_close(zhp); 6303 6304 return (ret != 0); 6305 } 6306 6307 /* 6308 * Generic callback for unsharing or unmounting a filesystem. 6309 */ 6310 static int 6311 unshare_unmount(int op, int argc, char **argv) 6312 { 6313 int do_all = 0; 6314 int flags = 0; 6315 int ret = 0; 6316 int c; 6317 zfs_handle_t *zhp; 6318 char nfs_mnt_prop[ZFS_MAXPROPLEN]; 6319 char sharesmb[ZFS_MAXPROPLEN]; 6320 6321 /* check options */ 6322 while ((c = getopt(argc, argv, op == OP_SHARE ? "a" : "af")) != -1) { 6323 switch (c) { 6324 case 'a': 6325 do_all = 1; 6326 break; 6327 case 'f': 6328 flags = MS_FORCE; 6329 break; 6330 case '?': 6331 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6332 optopt); 6333 usage(B_FALSE); 6334 } 6335 } 6336 6337 argc -= optind; 6338 argv += optind; 6339 6340 if (do_all) { 6341 /* 6342 * We could make use of zfs_for_each() to walk all datasets in 6343 * the system, but this would be very inefficient, especially 6344 * since we would have to linearly search /etc/mnttab for each 6345 * one. Instead, do one pass through /etc/mnttab looking for 6346 * zfs entries and call zfs_unmount() for each one. 6347 * 6348 * Things get a little tricky if the administrator has created 6349 * mountpoints beneath other ZFS filesystems. In this case, we 6350 * have to unmount the deepest filesystems first. To accomplish 6351 * this, we place all the mountpoints in an AVL tree sorted by 6352 * the special type (dataset name), and walk the result in 6353 * reverse to make sure to get any snapshots first. 6354 */ 6355 struct mnttab entry; 6356 uu_avl_pool_t *pool; 6357 uu_avl_t *tree = NULL; 6358 unshare_unmount_node_t *node; 6359 uu_avl_index_t idx; 6360 uu_avl_walk_t *walk; 6361 6362 if (argc != 0) { 6363 (void) fprintf(stderr, gettext("too many arguments\n")); 6364 usage(B_FALSE); 6365 } 6366 6367 if (((pool = uu_avl_pool_create("unmount_pool", 6368 sizeof (unshare_unmount_node_t), 6369 offsetof(unshare_unmount_node_t, un_avlnode), 6370 unshare_unmount_compare, UU_DEFAULT)) == NULL) || 6371 ((tree = uu_avl_create(pool, NULL, UU_DEFAULT)) == NULL)) 6372 nomem(); 6373 6374 rewind(mnttab_file); 6375 while (getmntent(mnttab_file, &entry) == 0) { 6376 6377 /* ignore non-ZFS entries */ 6378 if (strcmp(entry.mnt_fstype, MNTTYPE_ZFS) != 0) 6379 continue; 6380 6381 /* ignore snapshots */ 6382 if (strchr(entry.mnt_special, '@') != NULL) 6383 continue; 6384 6385 if ((zhp = zfs_open(g_zfs, entry.mnt_special, 6386 ZFS_TYPE_FILESYSTEM)) == NULL) { 6387 ret = 1; 6388 continue; 6389 } 6390 6391 /* 6392 * Ignore datasets that are excluded/restricted by 6393 * parent pool name. 6394 */ 6395 if (zpool_skip_pool(zfs_get_pool_name(zhp))) { 6396 zfs_close(zhp); 6397 continue; 6398 } 6399 6400 switch (op) { 6401 case OP_SHARE: 6402 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6403 nfs_mnt_prop, 6404 sizeof (nfs_mnt_prop), 6405 NULL, NULL, 0, B_FALSE) == 0); 6406 if (strcmp(nfs_mnt_prop, "off") != 0) 6407 break; 6408 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6409 nfs_mnt_prop, 6410 sizeof (nfs_mnt_prop), 6411 NULL, NULL, 0, B_FALSE) == 0); 6412 if (strcmp(nfs_mnt_prop, "off") == 0) 6413 continue; 6414 break; 6415 case OP_MOUNT: 6416 /* Ignore legacy mounts */ 6417 verify(zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, 6418 nfs_mnt_prop, 6419 sizeof (nfs_mnt_prop), 6420 NULL, NULL, 0, B_FALSE) == 0); 6421 if (strcmp(nfs_mnt_prop, "legacy") == 0) 6422 continue; 6423 /* Ignore canmount=noauto mounts */ 6424 if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) == 6425 ZFS_CANMOUNT_NOAUTO) 6426 continue; 6427 default: 6428 break; 6429 } 6430 6431 node = safe_malloc(sizeof (unshare_unmount_node_t)); 6432 node->un_zhp = zhp; 6433 node->un_mountp = safe_strdup(entry.mnt_mountp); 6434 6435 uu_avl_node_init(node, &node->un_avlnode, pool); 6436 6437 if (uu_avl_find(tree, node, NULL, &idx) == NULL) { 6438 uu_avl_insert(tree, node, idx); 6439 } else { 6440 zfs_close(node->un_zhp); 6441 free(node->un_mountp); 6442 free(node); 6443 } 6444 } 6445 6446 /* 6447 * Walk the AVL tree in reverse, unmounting each filesystem and 6448 * removing it from the AVL tree in the process. 6449 */ 6450 if ((walk = uu_avl_walk_start(tree, 6451 UU_WALK_REVERSE | UU_WALK_ROBUST)) == NULL) 6452 nomem(); 6453 6454 while ((node = uu_avl_walk_next(walk)) != NULL) { 6455 uu_avl_remove(tree, node); 6456 6457 switch (op) { 6458 case OP_SHARE: 6459 if (zfs_unshareall_bypath(node->un_zhp, 6460 node->un_mountp) != 0) 6461 ret = 1; 6462 break; 6463 6464 case OP_MOUNT: 6465 if (zfs_unmount(node->un_zhp, 6466 node->un_mountp, flags) != 0) 6467 ret = 1; 6468 break; 6469 } 6470 6471 zfs_close(node->un_zhp); 6472 free(node->un_mountp); 6473 free(node); 6474 } 6475 6476 uu_avl_walk_end(walk); 6477 uu_avl_destroy(tree); 6478 uu_avl_pool_destroy(pool); 6479 6480 } else { 6481 if (argc != 1) { 6482 if (argc == 0) 6483 (void) fprintf(stderr, 6484 gettext("missing filesystem argument\n")); 6485 else 6486 (void) fprintf(stderr, 6487 gettext("too many arguments\n")); 6488 usage(B_FALSE); 6489 } 6490 6491 /* 6492 * We have an argument, but it may be a full path or a ZFS 6493 * filesystem. Pass full paths off to unmount_path() (shared by 6494 * manual_unmount), otherwise open the filesystem and pass to 6495 * zfs_unmount(). 6496 */ 6497 if (argv[0][0] == '/') 6498 return (unshare_unmount_path(op, argv[0], 6499 flags, B_FALSE)); 6500 6501 if ((zhp = zfs_open(g_zfs, argv[0], 6502 ZFS_TYPE_FILESYSTEM)) == NULL) 6503 return (1); 6504 6505 verify(zfs_prop_get(zhp, op == OP_SHARE ? 6506 ZFS_PROP_SHARENFS : ZFS_PROP_MOUNTPOINT, 6507 nfs_mnt_prop, sizeof (nfs_mnt_prop), NULL, 6508 NULL, 0, B_FALSE) == 0); 6509 6510 switch (op) { 6511 case OP_SHARE: 6512 verify(zfs_prop_get(zhp, ZFS_PROP_SHARENFS, 6513 nfs_mnt_prop, 6514 sizeof (nfs_mnt_prop), 6515 NULL, NULL, 0, B_FALSE) == 0); 6516 verify(zfs_prop_get(zhp, ZFS_PROP_SHARESMB, 6517 sharesmb, sizeof (sharesmb), NULL, NULL, 6518 0, B_FALSE) == 0); 6519 6520 if (strcmp(nfs_mnt_prop, "off") == 0 && 6521 strcmp(sharesmb, "off") == 0) { 6522 (void) fprintf(stderr, gettext("cannot " 6523 "unshare '%s': legacy share\n"), 6524 zfs_get_name(zhp)); 6525 (void) fprintf(stderr, gettext("use " 6526 "unshare(1M) to unshare this " 6527 "filesystem\n")); 6528 ret = 1; 6529 } else if (!zfs_is_shared(zhp)) { 6530 (void) fprintf(stderr, gettext("cannot " 6531 "unshare '%s': not currently " 6532 "shared\n"), zfs_get_name(zhp)); 6533 ret = 1; 6534 } else if (zfs_unshareall(zhp) != 0) { 6535 ret = 1; 6536 } 6537 break; 6538 6539 case OP_MOUNT: 6540 if (strcmp(nfs_mnt_prop, "legacy") == 0) { 6541 (void) fprintf(stderr, gettext("cannot " 6542 "unmount '%s': legacy " 6543 "mountpoint\n"), zfs_get_name(zhp)); 6544 (void) fprintf(stderr, gettext("use " 6545 "umount(1M) to unmount this " 6546 "filesystem\n")); 6547 ret = 1; 6548 } else if (!zfs_is_mounted(zhp, NULL)) { 6549 (void) fprintf(stderr, gettext("cannot " 6550 "unmount '%s': not currently " 6551 "mounted\n"), 6552 zfs_get_name(zhp)); 6553 ret = 1; 6554 } else if (zfs_unmountall(zhp, flags) != 0) { 6555 ret = 1; 6556 } 6557 break; 6558 } 6559 6560 zfs_close(zhp); 6561 } 6562 6563 return (ret); 6564 } 6565 6566 /* 6567 * zfs unmount -a 6568 * zfs unmount filesystem 6569 * 6570 * Unmount all filesystems, or a specific ZFS filesystem. 6571 */ 6572 static int 6573 zfs_do_unmount(int argc, char **argv) 6574 { 6575 return (unshare_unmount(OP_MOUNT, argc, argv)); 6576 } 6577 6578 /* 6579 * zfs unshare -a 6580 * zfs unshare filesystem 6581 * 6582 * Unshare all filesystems, or a specific ZFS filesystem. 6583 */ 6584 static int 6585 zfs_do_unshare(int argc, char **argv) 6586 { 6587 return (unshare_unmount(OP_SHARE, argc, argv)); 6588 } 6589 6590 /* 6591 * Called when invoked as /etc/fs/zfs/mount. Do the mount if the mountpoint is 6592 * 'legacy'. Otherwise, complain that use should be using 'zfs mount'. 6593 */ 6594 static int 6595 manual_mount(int argc, char **argv) 6596 { 6597 zfs_handle_t *zhp; 6598 char mountpoint[ZFS_MAXPROPLEN]; 6599 char mntopts[MNT_LINE_MAX] = { '\0' }; 6600 int ret = 0; 6601 int c; 6602 int flags = 0; 6603 char *dataset, *path; 6604 6605 /* check options */ 6606 while ((c = getopt(argc, argv, ":mo:O")) != -1) { 6607 switch (c) { 6608 case 'o': 6609 (void) strlcpy(mntopts, optarg, sizeof (mntopts)); 6610 break; 6611 case 'O': 6612 flags |= MS_OVERLAY; 6613 break; 6614 case 'm': 6615 flags |= MS_NOMNTTAB; 6616 break; 6617 case ':': 6618 (void) fprintf(stderr, gettext("missing argument for " 6619 "'%c' option\n"), optopt); 6620 usage(B_FALSE); 6621 break; 6622 case '?': 6623 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6624 optopt); 6625 (void) fprintf(stderr, gettext("usage: mount [-o opts] " 6626 "<path>\n")); 6627 return (2); 6628 } 6629 } 6630 6631 argc -= optind; 6632 argv += optind; 6633 6634 /* check that we only have two arguments */ 6635 if (argc != 2) { 6636 if (argc == 0) 6637 (void) fprintf(stderr, gettext("missing dataset " 6638 "argument\n")); 6639 else if (argc == 1) 6640 (void) fprintf(stderr, 6641 gettext("missing mountpoint argument\n")); 6642 else 6643 (void) fprintf(stderr, gettext("too many arguments\n")); 6644 (void) fprintf(stderr, "usage: mount <dataset> <mountpoint>\n"); 6645 return (2); 6646 } 6647 6648 dataset = argv[0]; 6649 path = argv[1]; 6650 6651 /* try to open the dataset */ 6652 if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_FILESYSTEM)) == NULL) 6653 return (1); 6654 6655 (void) zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT, mountpoint, 6656 sizeof (mountpoint), NULL, NULL, 0, B_FALSE); 6657 6658 /* check for legacy mountpoint and complain appropriately */ 6659 ret = 0; 6660 if (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) == 0) { 6661 if (mount(dataset, path, MS_OPTIONSTR | flags, MNTTYPE_ZFS, 6662 NULL, 0, mntopts, sizeof (mntopts)) != 0) { 6663 (void) fprintf(stderr, gettext("mount failed: %s\n"), 6664 strerror(errno)); 6665 ret = 1; 6666 } 6667 } else { 6668 (void) fprintf(stderr, gettext("filesystem '%s' cannot be " 6669 "mounted using 'mount -F zfs'\n"), dataset); 6670 (void) fprintf(stderr, gettext("Use 'zfs set mountpoint=%s' " 6671 "instead.\n"), path); 6672 (void) fprintf(stderr, gettext("If you must use 'mount -F zfs' " 6673 "or /etc/vfstab, use 'zfs set mountpoint=legacy'.\n")); 6674 (void) fprintf(stderr, gettext("See zfs(1M) for more " 6675 "information.\n")); 6676 ret = 1; 6677 } 6678 6679 return (ret); 6680 } 6681 6682 /* 6683 * Called when invoked as /etc/fs/zfs/umount. Unlike a manual mount, we allow 6684 * unmounts of non-legacy filesystems, as this is the dominant administrative 6685 * interface. 6686 */ 6687 static int 6688 manual_unmount(int argc, char **argv) 6689 { 6690 int flags = 0; 6691 int c; 6692 6693 /* check options */ 6694 while ((c = getopt(argc, argv, "f")) != -1) { 6695 switch (c) { 6696 case 'f': 6697 flags = MS_FORCE; 6698 break; 6699 case '?': 6700 (void) fprintf(stderr, gettext("invalid option '%c'\n"), 6701 optopt); 6702 (void) fprintf(stderr, gettext("usage: unmount [-f] " 6703 "<path>\n")); 6704 return (2); 6705 } 6706 } 6707 6708 argc -= optind; 6709 argv += optind; 6710 6711 /* check arguments */ 6712 if (argc != 1) { 6713 if (argc == 0) 6714 (void) fprintf(stderr, gettext("missing path " 6715 "argument\n")); 6716 else 6717 (void) fprintf(stderr, gettext("too many arguments\n")); 6718 (void) fprintf(stderr, gettext("usage: unmount [-f] <path>\n")); 6719 return (2); 6720 } 6721 6722 return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE)); 6723 } 6724 6725 static int 6726 find_command_idx(char *command, int *idx) 6727 { 6728 int i; 6729 6730 for (i = 0; i < NCOMMAND; i++) { 6731 if (command_table[i].name == NULL) 6732 continue; 6733 6734 if (strcmp(command, command_table[i].name) == 0) { 6735 *idx = i; 6736 return (0); 6737 } 6738 } 6739 return (1); 6740 } 6741 6742 static inline char * 6743 get_rid_fs(const char *rid) 6744 { 6745 FILE *pool_file = NULL; 6746 char *fs = malloc(256); 6747 char *pool = fs; 6748 size_t len; 6749 int rid_len; 6750 6751 assert(fs); 6752 6753 if (!rid) { 6754 fprintf(stderr, "rzfs: no rid given for -r\n"); 6755 exit(1); 6756 } 6757 6758 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6759 fprintf(stderr, "rzfs: get_rid_fs: fopen for %s failed: %s\n", 6760 STG_POOL_FILE, strerror(errno)); 6761 exit(1); 6762 } 6763 6764 len = fread(pool, sizeof(char), 256, pool_file); 6765 if (len != POOL_NAME_LEN + 1) { 6766 fprintf(stderr, "rzfs: get_rid_fs: malformed pool in %s " 6767 "(len=%d)\n", STG_POOL_FILE, (int)len); 6768 exit(1); 6769 } 6770 fs[POOL_NAME_LEN] = 0; 6771 6772 rid_len = strlen(rid); 6773 sprintf(fs, "%s/%c%c/%s_root", pool, rid[rid_len - 2], 6774 rid[rid_len - 1], rid); 6775 fclose(pool_file); 6776 return fs; 6777 } 6778 6779 /* path: /mnt/abc.n/99/599999 */ 6780 static char * 6781 get_space_path(const char *rid) 6782 { 6783 FILE *pool_file = NULL; 6784 char *path = malloc(PATH_MAX + 1); 6785 char pool[POOL_NAME_LEN + 1]; 6786 size_t len; 6787 int rid_len; 6788 6789 assert(path); 6790 6791 if (!rid) { 6792 fprintf(stderr, "xlist: no rid given for -r\n"); 6793 exit(1); 6794 } 6795 if (strlen(rid) < 8) { 6796 fprintf(stderr, "invalid rid\n"); 6797 exit(1); 6798 } 6799 if (!(pool_file = fopen(STG_POOL_FILE, "r"))) { 6800 fprintf(stderr, "xlist: get_space_path: fopen for %s failed: " 6801 "%s\n", STG_POOL_FILE, strerror(errno)); 6802 exit(1); 6803 } 6804 len = fread(pool, sizeof(char), POOL_NAME_LEN + 1, pool_file); 6805 if (len != POOL_NAME_LEN + 1) { 6806 fprintf(stderr, "xlist: get_space_path: malformed pool in %s " 6807 "(len=%d)\n", STG_POOL_FILE, (int)len); 6808 exit(1); 6809 } 6810 pool[POOL_NAME_LEN] = 0; 6811 6812 rid_len = strlen(rid); 6813 sprintf(path, "/mnt/%s/%c%c/%s", pool, rid[rid_len - 2], 6814 rid[rid_len - 1], rid); 6815 6816 fclose(pool_file); 6817 return path; 6818 } 6819 6820 int 6821 xlist(zfs_handle_t *zfh, void *ctx) 6822 { 6823 int ret; 6824 6825 if (zfs_get_type(zfh) & dataset_type) 6826 printf("%s\n", zfs_get_name(zfh)); 6827 6828 if (dataset_type & ZFS_TYPE_SNAPSHOT) { 6829 ret = zfs_iter_snapshots(zfh, xlist, ctx); 6830 if (ret) { 6831 fprintf(stderr, "xlist failed for %s: %s\n", 6832 zfs_get_name(zfh), 6833 libzfs_error_description(g_zfs)); 6834 exit(1); 6835 } 6836 } 6837 6838 ret = zfs_iter_filesystems(zfh, xlist, ctx); 6839 if (ret) { 6840 fprintf(stderr, "xlist failed for %s: %s\n", zfs_get_name(zfh), 6841 libzfs_error_description(g_zfs)); 6842 exit(1); 6843 } 6844 zfs_close(zfh); 6845 return (0); 6846 } 6847 6848 static int 6849 zfs_do_xlist(int argc, char **argv) 6850 { 6851 char *rootfs = NULL; 6852 char *path = NULL; 6853 dataset_type = ZFS_TYPE_FILESYSTEM; 6854 char *properties = NULL; 6855 char c; 6856 6857 while ((c = getopt(argc, argv, "hasS:r:p:v")) != -1) { 6858 switch (c) { 6859 case 'h': /* help */ 6860 usage(B_TRUE); 6861 return 1; 6862 case 'a': /* print fs and snapshots */ 6863 dataset_type |= ZFS_TYPE_SNAPSHOT; 6864 break; 6865 case 'r': /* rid */ 6866 rootfs = get_rid_fs(optarg); 6867 break; 6868 case 's': /* print snapshots only */ 6869 dataset_type = ZFS_TYPE_SNAPSHOT; 6870 break; 6871 case 'S': 6872 path = get_space_path(optarg); 6873 printf("%s\n", path); 6874 exit(0); 6875 break; 6876 case 'p': 6877 properties = optarg; 6878 break; 6879 case 'v': 6880 fprintf(stderr, "xlist version %s\n", XVERSION); 6881 exit(0); 6882 default: 6883 (void) fprintf(stderr, 6884 gettext("invalid option '%c'\n"), optopt); 6885 usage(B_FALSE); 6886 } 6887 } 6888 6889 argc -= optind; 6890 argv += optind; 6891 6892 if (!rootfs) 6893 rootfs = *argv; 6894 6895 if (rootfs == NULL) { 6896 return zfs_iter_root(g_zfs, xlist, NULL); 6897 } else { 6898 zfs_handle_t *zfsh= zfs_open(g_zfs, rootfs, 6899 ZFS_TYPE_FILESYSTEM); 6900 if (!zfsh) { 6901 fprintf(stderr, "zfs_open failed for %s\n", 6902 rootfs); 6903 exit(1); 6904 } 6905 return xlist(zfsh, NULL); 6906 } 6907 } 6908 6909 static int 6910 zfs_do_diff(int argc, char **argv) 6911 { 6912 zfs_handle_t *zhp; 6913 int flags = 0; 6914 char *tosnap = NULL; 6915 char *fromsnap = NULL; 6916 char *atp, *copy; 6917 int err = 0; 6918 int c; 6919 6920 while ((c = getopt(argc, argv, "FHt")) != -1) { 6921 switch (c) { 6922 case 'F': 6923 flags |= ZFS_DIFF_CLASSIFY; 6924 break; 6925 case 'H': 6926 flags |= ZFS_DIFF_PARSEABLE; 6927 break; 6928 case 't': 6929 flags |= ZFS_DIFF_TIMESTAMP; 6930 break; 6931 default: 6932 (void) fprintf(stderr, 6933 gettext("invalid option '%c'\n"), optopt); 6934 usage(B_FALSE); 6935 } 6936 } 6937 6938 argc -= optind; 6939 argv += optind; 6940 6941 if (argc < 1) { 6942 (void) fprintf(stderr, 6943 gettext("must provide at least one snapshot name\n")); 6944 usage(B_FALSE); 6945 } 6946 6947 if (argc > 2) { 6948 (void) fprintf(stderr, gettext("too many arguments\n")); 6949 usage(B_FALSE); 6950 } 6951 6952 fromsnap = argv[0]; 6953 tosnap = (argc == 2) ? argv[1] : NULL; 6954 6955 copy = NULL; 6956 if (*fromsnap != '@') 6957 copy = strdup(fromsnap); 6958 else if (tosnap) 6959 copy = strdup(tosnap); 6960 if (copy == NULL) 6961 usage(B_FALSE); 6962 6963 if ((atp = strchr(copy, '@')) != NULL) 6964 *atp = '\0'; 6965 6966 if ((zhp = zfs_open(g_zfs, copy, ZFS_TYPE_FILESYSTEM)) == NULL) 6967 return (1); 6968 6969 free(copy); 6970 6971 /* 6972 * Ignore SIGPIPE so that the library can give us 6973 * information on any failure 6974 */ 6975 (void) sigignore(SIGPIPE); 6976 6977 err = zfs_show_diffs(zhp, STDOUT_FILENO, fromsnap, tosnap, flags); 6978 6979 zfs_close(zhp); 6980 6981 return (err != 0); 6982 } 6983 6984 /* 6985 * zfs bookmark <fs@snap> <fs#bmark> 6986 * 6987 * Creates a bookmark with the given name from the given snapshot. 6988 */ 6989 static int 6990 zfs_do_bookmark(int argc, char **argv) 6991 { 6992 char snapname[ZFS_MAXNAMELEN]; 6993 zfs_handle_t *zhp; 6994 nvlist_t *nvl; 6995 int ret = 0; 6996 int c; 6997 6998 /* check options */ 6999 while ((c = getopt(argc, argv, "")) != -1) { 7000 switch (c) { 7001 case '?': 7002 (void) fprintf(stderr, 7003 gettext("invalid option '%c'\n"), optopt); 7004 goto usage; 7005 } 7006 } 7007 7008 argc -= optind; 7009 argv += optind; 7010 7011 /* check number of arguments */ 7012 if (argc < 1) { 7013 (void) fprintf(stderr, gettext("missing snapshot argument\n")); 7014 goto usage; 7015 } 7016 if (argc < 2) { 7017 (void) fprintf(stderr, gettext("missing bookmark argument\n")); 7018 goto usage; 7019 } 7020 7021 if (strchr(argv[1], '#') == NULL) { 7022 (void) fprintf(stderr, 7023 gettext("invalid bookmark name '%s' -- " 7024 "must contain a '#'\n"), argv[1]); 7025 goto usage; 7026 } 7027 7028 if (argv[0][0] == '@') { 7029 /* 7030 * Snapshot name begins with @. 7031 * Default to same fs as bookmark. 7032 */ 7033 (void) strncpy(snapname, argv[1], sizeof (snapname)); 7034 *strchr(snapname, '#') = '\0'; 7035 (void) strlcat(snapname, argv[0], sizeof (snapname)); 7036 } else { 7037 (void) strncpy(snapname, argv[0], sizeof (snapname)); 7038 } 7039 zhp = zfs_open(g_zfs, snapname, ZFS_TYPE_SNAPSHOT); 7040 if (zhp == NULL) 7041 goto usage; 7042 zfs_close(zhp); 7043 7044 7045 nvl = fnvlist_alloc(); 7046 fnvlist_add_string(nvl, argv[1], snapname); 7047 ret = lzc_bookmark(nvl, NULL); 7048 fnvlist_free(nvl); 7049 7050 if (ret != 0) { 7051 const char *err_msg; 7052 char errbuf[1024]; 7053 7054 (void) snprintf(errbuf, sizeof (errbuf), 7055 dgettext(TEXT_DOMAIN, 7056 "cannot create bookmark '%s'"), argv[1]); 7057 7058 switch (ret) { 7059 case EXDEV: 7060 err_msg = "bookmark is in a different pool"; 7061 break; 7062 case EEXIST: 7063 err_msg = "bookmark exists"; 7064 break; 7065 case EINVAL: 7066 err_msg = "invalid argument"; 7067 break; 7068 case ENOTSUP: 7069 err_msg = "bookmark feature not enabled"; 7070 break; 7071 case ENOSPC: 7072 err_msg = "out of space"; 7073 break; 7074 default: 7075 err_msg = "unknown error"; 7076 break; 7077 } 7078 (void) fprintf(stderr, "%s: %s\n", errbuf, 7079 dgettext(TEXT_DOMAIN, err_msg)); 7080 } 7081 7082 return (ret != 0); 7083 7084 usage: 7085 usage(B_FALSE); 7086 return (-1); 7087 } 7088 7089 int 7090 main(int argc, char **argv) 7091 { 7092 int ret = 0; 7093 int i; 7094 char *progname; 7095 char *cmdname; 7096 7097 (void) setlocale(LC_ALL, ""); 7098 (void) textdomain(TEXT_DOMAIN); 7099 7100 opterr = 0; 7101 7102 if ((g_zfs = libzfs_init()) == NULL) { 7103 (void) fprintf(stderr, gettext("internal error: failed to " 7104 "initialize ZFS library\n")); 7105 return (1); 7106 } 7107 7108 zfs_save_arguments(argc, argv, history_str, sizeof (history_str)); 7109 7110 libzfs_print_on_error(g_zfs, B_TRUE); 7111 7112 if ((mnttab_file = fopen(MNTTAB, "r")) == NULL) { 7113 (void) fprintf(stderr, gettext("internal error: unable to " 7114 "open %s\n"), MNTTAB); 7115 return (1); 7116 } 7117 7118 /* 7119 * This command also doubles as the /etc/fs mount and unmount program. 7120 * Determine if we should take this behavior based on argv[0]. 7121 */ 7122 progname = basename(argv[0]); 7123 if (strcmp(progname, "mount") == 0) { 7124 ret = manual_mount(argc, argv); 7125 } else if (strcmp(progname, "umount") == 0) { 7126 ret = manual_unmount(argc, argv); 7127 } else { 7128 /* 7129 * Make sure the user has specified some command. 7130 */ 7131 if (argc < 2) { 7132 (void) fprintf(stderr, gettext("missing command\n")); 7133 usage(B_FALSE); 7134 } 7135 7136 cmdname = argv[1]; 7137 7138 /* 7139 * The 'umount' command is an alias for 'unmount' 7140 */ 7141 if (strcmp(cmdname, "umount") == 0) 7142 cmdname = "unmount"; 7143 7144 /* 7145 * The 'recv' command is an alias for 'receive' 7146 */ 7147 if (strcmp(cmdname, "recv") == 0) 7148 cmdname = "receive"; 7149 7150 /* 7151 * The 'snap' command is an alias for 'snapshot' 7152 */ 7153 if (strcmp(cmdname, "snap") == 0) 7154 cmdname = "snapshot"; 7155 7156 /* 7157 * Special case '-?' 7158 */ 7159 if (strcmp(cmdname, "-?") == 0) 7160 usage(B_TRUE); 7161 7162 /* 7163 * Run the appropriate command. 7164 */ 7165 libzfs_mnttab_cache(g_zfs, B_TRUE); 7166 if (find_command_idx(cmdname, &i) == 0) { 7167 current_command = &command_table[i]; 7168 ret = command_table[i].func(argc - 1, argv + 1); 7169 } else if (strchr(cmdname, '=') != NULL) { 7170 verify(find_command_idx("set", &i) == 0); 7171 current_command = &command_table[i]; 7172 ret = command_table[i].func(argc, argv); 7173 } else { 7174 (void) fprintf(stderr, gettext("unrecognized " 7175 "command '%s'\n"), cmdname); 7176 usage(B_FALSE); 7177 } 7178 libzfs_mnttab_cache(g_zfs, B_FALSE); 7179 } 7180 7181 (void) fclose(mnttab_file); 7182 7183 if (ret == 0 && log_history) 7184 (void) zpool_log_history(g_zfs, history_str); 7185 7186 libzfs_fini(g_zfs); 7187 7188 /* 7189 * The 'ZFS_ABORT' environment variable causes us to dump core on exit 7190 * for the purposes of running ::findleaks. 7191 */ 7192 if (getenv("ZFS_ABORT") != NULL) { 7193 (void) printf("dumping core by request\n"); 7194 abort(); 7195 } 7196 7197 return (ret); 7198 } 7199